Starting Working Prototype

I'm starting to plan out the MVP for this after sitting on the landing page for a year. I feel like it needs a MVP to demonstrate value before I can see what users think and do some early validation.

Although I did get some signups just from the landing page (only about 20), I think an early stage working prototype will push that process along.

The next solve is to pick the platform to build it on. Being a non-techie builder - I have built out no code sites (pretty basic ones) on Webflow, wix, Wordpress, Pory etc. Whatever I use now will no doubt involve a fair bit of learning so I'm trying to decide which app platform to throw myself into and teach myself.

Any advice would be super helpful and very much appreciated.