What sources are you limited to?
There are some nice rogue ones in Traps and Treachery.
for an archer the one that extends sneak attack to 45 feet range is quite nice.
Nyambe turns uncanny dodge and evasion chain of class powers into feats, I think you could get improved evasion.
Hong has a bunch of Charisma based feats that are quite nice, check them out through the link in his sig.
If you want noncombat, think about dynasties and demagogues, it has political feats (I don't have it so I can't recommend any).
I don't like it for flavor reasons (I like small no NPC parties) but leadership is effective.
Have you thought about an item creation feat? Making what you want is nice.