Olivera would be a good one.
The match itself would be great sure but Oliveira would be the first fighter competing for the BMF title coming off a loss lol, ain't happening. Go get a win even if it's vs someone like Gamrot and then maybe the fight would make more sense to make.
I don't know if it really matters if he's coming of a loss or not, I mean it's the BMF belt. Losing a split decision to Arman doesn't really make him less of a BMF lol.
If he takes the route and beats Gamrot, the he's right back in the title picture and would just go for the real belt.