I believe the FtB corp (Middleton and Mercer) collapsed as a FtB corp but continued to exist with a few FtB people left in it. It was mostly a PvE focused group that got dogpiled a few times by high sec pirates. It effectively changed ownership and then became a nullsec corp for a bit. I don't know anything past that.
Kai Gaiden and I think another booter are in Adhocracy, a pretty well known mid-tier WH group that knows what they're about. If you want to try out WHs they'd be a good group to join. Nice videos btw Kai.
Downtym (another booter) and I both play in a small corp that does PvP solo/small gang roams in null, WH space, low, and recently factional warfare. My latest PvP video can be found here: https://www.youtube.com/watch?v=3cx8aovX_ng
I think there are a few others that play but I don't know their affiliations if any.