Speaking hypothetically of course, I'd imagine you'd have to find out who's still good to go. In regard to online stuff, I think within a few months there will be some new UG's but that's always dicy. I'd say stick to the tried and trues -- a private source or the online one's who've survived and will now only take on recommended clients. Or, travel to a country that carrys them and send them home. (Not that I'm recommending that, of course, this is purely hypothetical as stated). In the meantime, check out some of the natural options. Some pretty good stuff right here on EF, legal.
And don't PM me asking who's good to go. I seriously have no idea. Just sayin'.