This is the most well-maintained list of commercially usable open LLMs: https://github.com/eugeneyan/open-llms

MPT, OpenLLaMA, and Falcon are probably the most generally useful.

For code, Replit Code (specifically replit-code-instruct-glaive) and StarCoder (WizardCoder-15B) are the current top open models and both can be used commercially.