it depends on what you're aiming for, i guess. a lot of commercial stuff is built on react and there is more tools, i suppose... but i like vue and dabbled a little with svelte. Curious to know what ideas you might have, i spend lots of time in python, so yea :)
Discussion
1. An anonymous survey platform with the ability to follow participants answers from one survey to another.
2. Curated datasets marketplace with built-in subscription to up-to-date data (fiat or LN).