Need your advise, Building personal project

Hello everyone,

I have an idea in my mind, Im already in the developing process, but im sure Im missing so many things of course,

My main question of course, once project is completed, how I can make it more visible on the internet, how I can reach my audience,

I have purchased UI Kit from MUI store which really helped me in my react learning journey as well

I was building the project using CRA for landing and admin pages, but Im considering having the lading page built with nextJs for better SEO

What else should I keep in my mind,

Any advise?

Thank you in advance