React in my experience sucks with AI. In fact I have not yet encountered a "heavy" framework which works well. Use something light like svelte.

Typed programming languages like Typescript, Scala, Haskell and so on will produce more errors -> you need to fix stuff manually. However it will also reduce bugs. So it is a mixed bag. For an error free experience python and JavaScript work very well.

When it comes to tooling, if you haven't used cline, roocode or aider (not as good) yet, you haven't seen what an AI can do.

A good starter would be starting fresh, by creating a README which describes the hole application you want to build in detail and let the AI decide the tech stack. You can most certainly build complex applications with an AI in blazing speed.