There aren’t any anti-anxiety meds that are not addictive. It is either going to be a benzodiazepine (Xanax, Lorazepam, Klonopin, etc.) an SSRI antidepressant or Buspar and they are all addictive.
Since you are probably being treated for an opiate addiction with suboxone, I'd be very careful with any anti-anxiety meds of the benzo class.