You might want to look at the comments and threads by Peter Roberts, who's done AMA threads on Hacker News before:
https://news.ycombinator.com/user?id=proberts
It's obviously a huge amount of information due to the great variety of kinds of visas and the complicated details about eligibility and practical considerations, but maybe some of the information in those threads will be helpful to you. Also, maybe Peter Roberts will be willing to do another thread at some point -- it's clear that a lot of Hacker News readers were very interested.
It might be somewhat expensive, but you may want to hire an immigration lawyer in the U.S. for a consultation, especially someone with a practice specialized in technology and startups. Some of the immigration lawyers have incredibly detailed and helpful knowledge about what works and doesn't work and can help you understand your options in your specific situation. I'm sure the lawyers would point out that there are many different kinds of immigration paths, and that small details about your situation and plans can affect your eligibility and likelihood of approval for each of them.
Best of luck to you!
