Different types of "talk" therapy all have some "T" basics built in: a non-judgmental attitude, empathy, expertise. You can research 3 basic therapy approaches to find all the rest: 1) cognitive, 2) behavioral, 3) dynamic.

Usually one chooses between group or individual modalities, but often a combination of the two work well for a disorder, especially when the same T is leading both. (Group can include skills emphasis, individual can include phone or email counseling.)