I have drains, seroma, aspirations, air. Any suggestions?

Sorry to hear of your concerns.   The issue with the bubbles is related to the fact that your drain tube is not connected to a suction bulb most likely.   If this does not resolve quickly, I would give consideration to having your drains replaced in an outpatient surgery to speed up your healing process.   All the best.

It doesn't sound dangerous, but.......If a drain has to be reinserted, then the type that was used normally is put to suction drainage.  If the suction is being maintained, then you shouldn't get air bubbles under your tissue and hear popping. If it is an open system, then air can get in.  In the absence of any fever, redness nor foul smelling drainage, I would doubt that there are any gas forming bacteria present.  Please address your concerns with your surgeon.