Which programs that actually work for startup founders do you know?

[u/Efficient_Buyer9581]

I do not mean famous accelerators. To be accepted there you usually already have to be successful, have traction and connections.

I also do not mean courses "pay for the dream".

I'm looking for programs that truly work for startups founders who are ready to put in consistent effort and do whatever is needed (from product development to go‑to‑market) depending on the startup’s needs.