Over 25 years ago when I started turkey hunting I used a 28 inch barrel because it was what I had. Bur, within a few years I bought a 870 turkey gun. Why because it had a 21 inch barrel. Later a bought an Encore with a 24 inch barrel.
IMO the shorter barrels are better for turkey hunting.
I have never noticed the muzzle blast. In fact last year I killed my first turkey for the year 10 minutes after legal shooting light at 20 yards.
I guess if you want to do all of your hunting with one shotgun and one barrel a 28” or a 26” barrel would be the way to go.
But I use different shotguns for different kinds of birds.