>Light.gg to see beat perk combos per weapon, to give you an idea
I wish there was a resource where I could pick a weapon type (shotgun), pick two perks (1-2 punch + Trench Barrel) and see what weapons can roll with that combination. (a sudden death, Fractethyst)
I recently had to go through all the guns that could roll trench barrel and manually look at each page to see if they rolled with 1-2 punch in the same or separate columns