I would highly recommend you to start learning marketing & sales! With your skillset now only thing you need is to acquire more clients & start making more money

for networking try twitter, indiehackers(website) and OC fb groups

but with that said, if you are looking for a co-founder who will help you in getting clients than it is just a myth

start learning how to sell & where to sell and people will come finding you & in that journey you will automatically get offers from other founders & people who will be willing to join uhh!!

Next + tailwind : frontend

for the backend : firebase or railway app

Next + tailwind : frontend

for the backend : firebase or railway app