1.) found several options, discussed with lawyer, and went with O-1. 2.) According to the lawyer I already had enough proof of my "extraordinary abilities" 3.)

1.) found several options, discussed with lawyer, and went with O-1. 2.) According to the lawyer I already had enough proof of my "extraordinary abilities" 3.) My advice: don't try this without a lawyer specialized in O-1. It took me 4-6 weeks to gather all the data + some extra weeks to get recommendation letters. My application had several hundred pages in the end (compiled by the lawyer).