Just off the top of my head…
Henry .410. There’s a variety of shells available for specialty purposes, but for close range, not too loud & effective it is a good option.
Want a short barrel option? No worries.
I have a non-lethal rubber bullet load in the FIRST shell. After that…..
If you’re gonna go .410 then buy a Taurus Judge or a Smith & Wesson Governor. You can shoot .45Colt, .410 shotgun rounds, bird shot, and even PDX self defense rounds [my favorite].
They’re illegal in California, of course.