If Kreia tones her Insidious Force belief and manipulations down, I'm sure they could find some common ground. Although I think she might lose it seeing what Yoda eats lol
I don't think she made any friends. Even Sion and Nihilus hated her. The Jedi "disapproved" of her teachings. The Ebon Hawk crew rallied against her once her plans came into focus. Being as manipulative as she is, I'm sure she could make friends. She just has to tone down the manipulations.