We started an IT college in South Africa offering IT qualifications only and have been struggling to attract students. When we do get students, mostly don't qualify to enroll for the programmes according to the National Qualification Framework. I come from a software development background and have no marketing experience which has made it difficult to market the institution. We have a very limited budget and need simple but effective ideas to implement for our marketing strategy. We have used social media but it has not translated into the leads we need.
Looks like you have already defined your ideal customer;
You need to find out where the potential students spend their time - Online & Physically - and meet them there.
I'll start with the option, which I think has the most potential:
and the answer is NOT online - do not underestimate the value of networking; going to meetup's - interest clubs - sticking adverts on buildings, bus stops etc. with little rip-off pieces.
- do they spend time on facebook? probably the most undervalued forms of marketing
- you can do a very narrow targeting through Google Ads, but you did mention a very low budget.
Hope this helps
What you plan to do is not destructing and if this is what you plan to do, you need to know whether is there really a market can afford to pay you money to attend the class?
I strongly suspect your challenges are:
1. whether it really available market that can pay
2. lack of publicity and public education of such needs
3. insufficient brand name/ reputation to give confidence to the students and local educators to support
There are many alternate approaches available:
1. Check this out https://byjus.com/ (but you need very rich investors)
2. post your training into a web platform with the good market place (e.g. www.udemy.com).
3. look for a good mentor who is very experienced in startup business like yours
4. don't start marketing unnecessary when you cannot answer the 3 challenges above ...
The above are my comments based on my over 20 years of experiences as an entrepreneur and management consultant- hope it is of some help.