We can likely have Sonarr handle the BTFX release, but the (M6) on the other releases will likely break Sonarr’s ability to match it to the series, you may need Jackett to clean those up before passing them back to Sonarr, but then it’d need to put something in there for Sonarr to match on, which would ideally match the BTFX releases.
I’ve added the alias, limited to releases that match either of those formats, but not sure how well it’s going to work.