Salem/Affiliation

Humanity
Salem's goal appears to be the destruction of humanity and all of his creations. She does have a healthy respect for the resourcefulness and ingenuity of humanity, and an understanding that humans are able to derive strength from hope. However, by dividing them and snuffing out their source of hope, she believes that she can rob humanity of their strength and thus destroy them.

Ozpin
Salem has a mysterious link with her enemy, Ozpin. They have apparently been locked in a struggle over the fate of humanity for a long time, with Salem attempting to destroy humans and Ozpin defending them. However, she is heard calmly and respectfully conversing with Ozpin in the episode "Ruby Rose". Ultimately, however, in "End of the Beginning", Salem affirms that she intends to watch Ozpin burn, but only after she destroys everything he has built.

Judging from comments made by Cinder Fall, Salem possibly believes Ozpin to be exceedingly arrogant.

Cinder Fall
Salm may have some connection to Cinder Fall. Cinder is heard speaking to an unidentified individual in "Beginning of the End"; it is likely that she was speaking to Salem. The mysterious glove that Cinder uses to steal Amber's power in "Beginning of the End" also bears a striking resemblance to the markings on Salem's cloak.