Sergei Badulin

Most probably you don't want to create component's logic from scratch. As you already have an app, try to make a list of all components that you'll need - modals, dropdowns, etc. And then try to find a library that has all of them, because some components are rare (like a range selector).

There's some libraries built with/for tailwind, for example https://headlessui.com. It's pretty basic, but maybe it'll be enough for you.

It's not that when you're using tailwind you're not touching css. It's just a convenient way to write it and it gives you a nice design system by default.

I haven't used Strapi, but Prismic and it's ok-ish and free for our needs. You can also take a look on Sanity, it has a good editor. It also depends on content type. For example if there's a lot of images try to find CMS that provides the easiest way to manage them, etc. React is fine, I'm using it with Gatsby for our website. Tailwind is awesome. For forms I'm using lambda functions, but if you can choose where to deploy you can go with Gatsby Cloud, it also supports serverless functions.