Cool post, very informative. I use NordVPN myself and I'm quite happy with it, the server variety is nice and internet speed doesn't take a significant hit. But Nord is also a bit cheaper if you get it for three years though I understand that that's not an ideal situation for everyone.
I’ve been using PIA for quite some time now, and they do allow P2P traffic and the like, so I can’t see that they would block these sites. I wouldn’t recommend using TunnelBear on this, especially since they are now part of McAfee.