Ya I was leaning to a s&w .44 initially. Generally I think there’s a school of thought of handcannon and 1-2 shots vs more rounds off and good enough load. Reports of encounters where the handgun mattered tend to vary b/t .357, .44, 10mm bear load, etc.
But, there’s a guy in an Alaska on YouTube who did a comparison of all the usual rd/weapon combos suggested, 10mm bear load + Glock 20 (what I use) did the best. I was comfortable with Glocks already so that’d wrapped it.