Cofounder @ Dropbase (dropbase.io) here. If you just need to build internal tools with Python or want to build internal tools on top of your existing Python codebase, give us a try. We have granular permission built-in so you can share internal tools with others easily, down to who can use or edit each internal tool you build.
For context, we're a more niche cousin to Reflex that's specifically designed to build internal tools. Reflex seems to be a more general framework to build anything you want; quite powerful, and possibly an easier to use Django replacement.
It's awesome to see frameworks like Reflex. I think the Python ecosystem needs this.