I refuse to spend money on this game so I haven't done to much scouting but that being said I got very lucky and got some awesome 5 stars pairs very quickly.
The ones I've gotten so far are: Whitney, Blue, Olivia, Sophocles, Bugsy, Mina, Kris, Roark, Gardenia, Roxie, Blaine, Ramos, Maylene, Siebold and Janine.