The Green Hermit
Hero
I had my players give me a wish list of 10 items for each character, since we are hoping to play all the way to level 20. When it makes sense, I add one of the wish items to a pile of loot -- keeping track of who got the last granted wish, so it isn't just one player lucking out. Otherwise, I go with what the published adventure states or randomly roll on the DMG loot tables.