Rather than trying to avoid drama perhaps it to might helpful to figure out ,in the quiet of your own mind ,"what it is about drama that makes you uncomfortable." We can't control other's but we can control how we choose to respond to them. It can be hard to step outside a comfort zone.
I have worked in many areas and I found that the most challenging areas like CVRU had less drama. I don't think the nurses there were any different it was just too busy contending with pt physical real crisis to have time to create our own. However, even so melt downs did occur here rarely when stress overload occurred
Ironically of all the places I worked, in my experience ASU, specifically the OR had the greatest drama. People had too much time on their hands between cases so the pot stirring began. The up side of this was in the recovery section of this same unit is where (r,I laughed the most , felt the best teamwork and had the most fun too. Maybe I just got lucky that we all got along
Good luck in your search .Keep your antennae high at the job interview
as often the personality of the manager can be a reflection of the staff. Like attracts like.