Hello, could you tell us little more about your character and your role in combat ? And also about your teammate ?
Friendly Fire Maneuvers, Target of Opportunity are both nice for an archer.
Target of Opportunity is dependant on others, but since your ally only needs to make a ranged attack, even ranged touch spellcasters would grant you the extra attack.
Ally Shield is a great way to be the douche of the group, but I wonder if it counts as a "bonus" to be dragged in front of an attack or not.
Stealth Synergy and Tribe Mentality are situational, but since you can change your most recent teamwork feat they become useful.
For melee, the first one you'll want to invest in is Outflank! +4 bonus anytime you are flanking, which should be very often.
Friendly Fire Maneuvers is the first one you'll want to invest in for ranged. It allows you to ignore positioning in regards to your teammates providing Soft Cover against your enemies.
More information though on your character and the make-up of your group would definitely aid in providing you additional options.