Pistol grip for saws over an inch or two from spine to tooth line. For smaller saws, a gent saw handle, but that’s mostly because a pistol grip would be banging on the bench / vise working that small (which I do, pretty frequently).
I have a Japanese saw or two I use almost exclusively for trimming things flush, as I’ve filed the set off the sides of the blade. Can’t cut dovetails with them to save my life, but it’s possible that’s due to having filed off the set and the saw having no back.