At present, it's virtually impossible to compile such a list. Boehner was re-elected Speaker pretty much unanimously by the caucus -- so there is no record of who, exactly, is anti-Boehner.
Moreover, nobody has ever announced an intention to run against him. And the caucus knows that, if they vote against him...and lose, they would be sacrificing their committee chairmanships -- even their committee assignments.
Accordingly, there won't be a meaningful show of hands until somebody announces he's running against Boehner AND he's got a real chance of winning.
This is so. The old adage "if you strike the king, you must kill the king" applies. Unless you're sure of success it is better to not try. Thus, it is up to us to establish the political pressure that makes a successful challenge possible. Reps need to be more fearful of the electorate than of Boehner.
Clearly the process is set up to shield the reps from individual responsibility--just like when they vote themselves a pay raise.
That is why I think it's important we isolate individual members and express our outrage to them personally and promise to work against them locally that we may be able to damage their phalanx.
Once there's blood in the water, hopefully, someone will step forward.
If it was unanimous then there is no opposition to Boehner or his methods or his policies.