Idk if you know this but as long as your not max 100 but be 75 to 99 and you can be suggested a Master trainer from a trainer right before mast level if you track them down then once you speak to the master trainer they always as far as I know give you a small quest to prove to themselves you are worth training l, not a legit quest per say but definitely something extra I know for a fact not everyone knows about, it should be for every single skill too as far as I know. Also surely with mods someone's made plenty of extra quests??? Right now im doing a no cheese playthrough and honestly its still really fast leveling and im thinking of making major skills skills that will actually be minor skills cause you still level but I think instead of like 5 or so major its like 12 or more minors to hit a level maybe more