+1 Preact. There are other libraries that might be more performant in certain cases, but performance and size aren't the only selling points Preact offers. Similarities to React API as well as a provided compatibility layer which allows the use of React-specific libraries with Preact are really nice. For a team that has previous React experience it can be an incremental migration (if the need is to get product pushed out quickly, start with preact-compat to get the foundations quickly laid out and then transition to full-on Preact as beneficial).
Community is great too. I creep their Slack channel and they're super friendly.
+1 Preact. There are other libraries that might be more performant in certain cases, but performance and size aren't the only selling points Preact offers. Similarities to React API as well as a provided compatibility layer which allows the use of React-specific libraries with Preact are really nice. For a team that has previous React experience it can be an incremental migration (if the need is to get product pushed out quickly, start with preact-compat to get the foundations quickly laid out and then transition to full-on Preact as beneficial).
Community is great too. I creep their Slack channel and they're super friendly.
Yeah, I'm getting a lot of great vibes from everything you're describing.