Started my first business in 1974, been going strong since. My business portfolio is varied. Recent focus has been setting up 10,000+ reqs/sec WordPress sites. Most hosting companies can barely make 10 reqs/sec. Anyone expert who tells you "WordPress is slow"... Do a 180 + run, as likely their incompetence is pervasive. For example, SERP Shaker WordPress sites I've been setting up recently clock in at 7,000+ reqs/sec. In November + December 2014, one of my clients ran sustained traffic, all day, every day of 100,000+ unique visitors/second on a $100/month dedicated server machine at a load of 5%-10% of capacity. If you site is slow remember, site speed depends primarily on the tuning of the server machine where your site is running.
I host 1000s of WordPress sites.
Here are some rules to keep your sanity working with WordPress.
1) Never. Ever. Ever. Use any type of specialized theme.
2) So, avoid using a Question + Answer Theme.
3) You'll avoid specialized themes because...
a) This type of theme's coding is usually substandard, unless you find it in the WordPress theme repository.
b) This type of theme becomes abandonware (developer's die or lose interest) at some point.
c) Changes in PHP + WordPress internal APIs usually kills this type of theme in some way, so at some point a PHP or WordPress update will kill your site.
4) Do use a solid + simple theme, like GeneratePress which lives in the WordPress repository, so must pass all the PHP + WordPress unit tests, before any update becomes available through the repository.
5) Do use a Q&A plugin + every plugin must be vetted.
For example, when I client asks me to vet a plugin, I do these steps...
a) Run phpcs on the plugin to ensure it works with PHP-7.4 (latest stable) PHP.
b) Install the plugin on a test site + go through entire setup, then check WordPress debug logs for diagnostic messages.
c) If #5b surfaces minor fixes, then these fixes are requested of the developer + if the developer fixes their code quickly + correctly, plugin testing continues. If developers are unresponsive or unable to fix their code, this plugin + company are blacklisted from any future use on any site I host.
d) If plugin produces horrible problems in the WordPress debug log, then the plugin + company are blacklisted from any future use on any site I host.
6) If the plugin is in the WordPress repository, check the issue tracker for the plugin + related company. If the company fixes all support issues quickly, you likely have a great company to work with. If you see issues which are months or years old with no response, this plugin + company best be added to your blacklist.
Summary: Use WordPress issue tracker (when possible), then phpcs + the WordPress debug log to determine which plugins may be useful.
Start with https://PostCardMania.com which allows you to start with very good list, as they mail massively every day.
And a postcard sequence can quickly churn out (butter churn causing cream to rise) the "cream" of every list which will produce your highest profits.
These guys manage intersects + sorts of many other lists, so generally they have far "hotter" (more responsive) lists than other list brokers.
This all depends on your income targets.
Tip: If you're looking for highest rates, you'll avoid new grads like the plague. They have no experience, so you're talking about competing on price.
For example, I work as a Fractional CTO... charging... well... a massively high hourly rate + percentage of profits.
Agencies who pitch my services have very little competition + the rates they're targeting are stratospheric, compared with new grad rates.
Tip: Start with your income requirements + amount of work you can tolerate. Also client quality you'll be working with + applicant quality you'll be working with.
All these factors set your marketing.
Tip: All the marketing you've listed above leaves you competing with every other similar company on price, so you'll work as hard as everyone else, have very little repeat business, with lowest possible profits/engagement.
Look for marketing venues with zero competition.
For example, speaking at https://Meetup.com groups or other events related to your niche.
One approach to doing this is to use the old Radio Publicity model... which has made many a person a fortune...
This is how I built my first opt-in list back in the 90s, using Radio Interviews with people sending me letters, using Postal mail.
Hire someone to...
1) Read Dean's book.
2) Work out with you questions to ask.
Tip: At this point, likely you'll craft the questions to which you already know all the answers.
3) Person you'll be working with must be adaptive, fluid enough to craft an organic sounding interview.
4) Generally both you + the interviewer will both have specific goals for the interview. This might be something you're selling or some other conversion, like people emailing an address to opt into a list.
You'll both work out how to cross promote each other, when you're designing the interview.
Tip: If you've never done this before, check out Alex Carroll's courses on Radio Publicity or Podcast Publicity...
Last time I spoke with Alex, both these courses are included in the Podcast Millions course, so likely that will be best course for you to acquire.
Tip: Proven revenue makes all the difference.
"Ideas are a dime a hundred dozen. Implementations are rare as rainbow unicorns."
We live in the Internet age, so run up your gross receipts to $10K-$100K/month, then list your site on Flippa for sale at a 10x gross multiple... In other words if your yearly profit is $100K, then list your business for sale at $1M.
It's unlikely your business will sell for this. If it does, take the money.
More likely potential investors will contact you.
Recommendation: Hire someone smart who can help you do this.
You must be very careful about how you approach this.
Based on doing this many times, it takes a massive amount of effort to fix this type of content organization after the fact, because you may end up having to recover from SEO penalties.
Far better to simply design this correctly from the start.
1) You have far to little information to provide a solid answer, so guessing is required...
2) What you may mean, guessing, is you have either common content or related content, which is multilingual.
3) If #2 is correct, then you must never guess about how to do what you're asking.
You'll either dig into Google docs about how to correctly arrange all your content across a single site (common content in different languages) or correctly organize related content.
Big Note: If you make the mistake of creating exactly the same content, in different languages, on different sites... what tends to occur over time is Google figures this out, then as time goes by some posts for some countries trend (depending on which country is indexed first), then other countries are penalized as duplicate content.
Then, far worse, if one site, say a German site has to high a percentage of page level duplicate content penalties, then the site gets a site wide duplicate content penalty.
All this is extremely simple to design from day one.
Trying to recover from page or site penalties in the future can be near impossible, because once penalties are levied (page or site), SEO recovery takes a very long time.
As I said above, hire someone to help you with this.
Tip: You'll know you have the right person for this project, when the rate they quote makes you weep. :-)
If I understand, you're asking about either WiFi or Fiber long haul boosters.
Tip: You'll likely require many millions to effectively develop, warehouse, market this type of device.
You'll also be competing with companies with multi-million per year marketing budgets.
If I were going to do this... first, I'd think twice as this will be a very difficult business with a high likelihood of failure, unless you have an unlimited budget available.
If I did have an unlimited budget, I'd likely focus on tech supporting WiFi only (no Fiber) with 802.11ac running over 802.11s (mesh network) where I could acquire low cost hardware, likely manufactured in China.
Ensuring https://dd-wrt.com would run on the hardware.
Then I'd do some value add to DD-WRT functionality, where the value add would be the basis of some unique marketing message.
And... Wow... There are many far easier ways to generate income with far more likely success.