How to Choose a Therapist or Treatment Center?

How do you pick a therapist/treatment center? I was thinking of doing intensive Outpatient therapy through an eating disorder center, however my eating issues are more of a secondary symptom of my borderline rather than a primary issue. I don't really want them to focus on the eating issues as a primary problem as my brain would make me feel that I was invalid and needed to get worse with that specific symptom to deserve treatment. However I'm not aware of a way to find treatment in multiple comorbidities other than an actual center. Has anyone went through this before?