I am seeking a speaker with more slam and dynamics.
You’d be hard pressed to do better than these SCM50 towers if that’s what you’re looking for, and they’re fantastic all-around speakers. They require power to fully do what they do, but your Bryston should be up to the task. Best of luck.
https://soundapproach.com/atc-scm50-pslt-tower-series-9-3-way-passive-tower-speakers-pair.html