Project Management/Proposal Cert/Course Suggestions

I’ve been following this sub for nearly a year now, and several contracts later we want to begin calibrating our business to federal opportunities. However it’s clear federal ops are a different beast.

That being said, I’d like for my business partner and I to improve our skill sets and knowledge pertaining to proposal curation, and project management competence.

I’ve done some brief shopping and all of them seem to be $3K +. Is this standard rate for these 8-10 week courses?

Are there worth while courses or certs you suggest?