People are busy AND you provided no details beyond "adventure, possibly orogs", so no one's characters have any reason to join you. If you want assistance, Dispatch to your allies and/or geographic neighbors and give them an IC reason why they have an interest in helping, whether that's because it'll benefit them or because you've still got those pictures from the last Sword and Crown involving them, the Swordmage, Princess Avan, and several bottles of the finest rotgut whiskey ever brewed by goblins.
Basically, don't look for PLAYERS to join in. Look for CHARACTERS to join in.