First off, welcome to AA.
Second, and im sure the mods will take care of this but your posting in the wrong section. You sound like you want the Freshwater General Discussion Section of the site. Youll find a lot of helpfull stuff there.
Third, I like swordtails a lot and think they are pretty cool fish, what colors/kinds are yours? What filtration do you have on your tank? Ive used tetras with swordtails and have had great results as they add fantastic movement and color to the tank. Other than that (maybe some dwarf cory catfish) i think your pretty stocked for the 10 gal tank.