Welcome back!
I run mostly out of keyword. My newest thing to do is use the rider to throw her forward activation one, then activate Sonia activation 2 then pull her back with phi activation 3. A lot of people are bunching up to start the game, which gives her a chance to get some burning out early. And if they want to charge her in between, they have to be fast and willing to take the hazardous, and the burning from her trigger, and be there for the rest of the crew to shoot (and then Sonia can get healed by the steward or domador.)
If they have guns this is a little more risky, but out side of a few crews, there isn't a ton of threat to her.
I'm not sure if it's good, but people really aren't used to activation 2 aggression, which makes it really fun to watch them deal.