Hey! I'm a co-founder of SaaS Boilerplate - https://www.apptension.com/saas-boilerplate

We support Python/Django on the backend and Typescript/React on the frontend. It has all you mentioned - RBAC, User management, and payments/subscriptions (via Stripe integration). Of course, these are not all the features we have ;)

Happy to answer all your questions! Wishing you good luck with setting up and launching your project.

Cheers, Zee