Houston already has Hop, Fuller, and Coutee. I don't really foresee them making a run at Brown, and even if they did, Pittsburgh might not be willing to trade him to a team that some view as an AFC Contender.
Colts make a lot of sense unless Pittsburgh doesn't want to deal him to a potential AFC Contender.
I really don't know at this point.
49ers make a lot of sense; they're in the NFC, have enough money to make AB happy, and have a major need at WR.
Raiders seem like a realistic option still; would be interesting to see if AB would play for them after reportedly refusing to play for Buffalo, but the Raiders are at least in Cali/Vegas.
I think Detroit could be a dark horse candidate.
Seems like that's basically it at this point (if the Packers NOT being interested in true).