Based on your question '....best method for presenting MVP to potential customers?', I'm assuming that you are yet to attract or in the process of attracting your audience. If so, I think you may be jumping the gun here. I'd say
1. Build your audience first.
2.Engage them as you build. Ask them as you build what they want. Because your 'product' is tailored to the client and almost dependent on their engagement, you have to make it more customer-centric.
Some Questions for you to think about if you haven't already:
a. How are you attracting your clients?
b. What are they looking for?
c. What will keep them engaged on your website?
d. Would they feel comfortable referring your services to their network(s)?
e. How do you ensure that they are engaged on your website?
f. What will engage them?
g. Besides a profile, will your customer help generate content that could help expand the reach of your website, i.e. Are they consumers of content or co-providers?
h. What use is another professional profile in addition to others like Linkedin? Why yours? etc

After answering these and more questions, knowing who your clients are and finding out what they 'want', your Minimum Viable Product could then become the most attractive & tangible thing/service you can offer your clients FREE of charge. Use that to grow your audience, then gradually implement revenue generating perks or additional services worth paying for.
Feel free to give me a call to further discuss this.
Cheers,
Chike