BTBAM doesn't really have a lot of material out. There is their first self titled which is hard to come by a actual copy of but is worth downloading for sure. You can tell it's a band that's just starting out but it's still really good. Then there is their first proper release which is called The Silent Circus. That album is so dope and I highly recommened you download/swoop it up. Alaska you already know about -- that's my fav. by them. The Anatomy of... is a covers album and while I like it the songs are hit or miss with me. They are supposed to be droping a new album called Colors sometime in Sept. I'm going to try to hold off on downloading it and wait to get a proper copy, but I doubt that will happen.
The drummer and one of the guitarists are in another great band called Glass Casket. They are more just straight up Deathcore and not really experimental/weird like BTBAM. But I like their stuff a lot.