Sometimes i don’t know what transmog i should use, so until i figure this out i use few sets, they look nice on any race/gender, and i use them until i collect enough transmog for the class.
All: Stormwind Set, hide the helmet, add a tabard and you get a nice looking set, Alliance only.
Plate: Demonsteel Armor, also hide the helmet, this set comes from blacksmith crafting in Legion, so you can grind for it or buy it from other players.
Plate: Demonbreaker Battleplate, hide the helmet, i rarely like any helmets, this set comes from LFR Hellfire Citadel, it have nice little details, a dagger and a bag on the belt, green crystals on the shoulders, i thought the color will be a problem but it wasn’t, i tried it and it looks nice.
Cloth classes have many nice looking robes so i never have a problem to find a nice transmog for these classes.
One more thing:
This is my Mechagnome warrior, on the right is a pet battle! it looks cute and almost big enough to be a mount for the gnome!
Anyway, Mechagnomes have a problem with transmog, they can’t show gear on feet, legs, wrists and hands, when i made this character the
second first quest gave me a tabard, using this tabard solved the problem with transmog, it looks nice, it’ll work until i get the Heritage armor for Mechagnomes.