This information can be found online but if you need some good starting points, Id recommend Joey for Red Eyes and Jinzo cards, Kaiba for Blue Eyes cards, and Yugi for Dark Magician and spellcaster support
Graveyard synergy can definitely be implemented, though
They aren't the most annoying deck in the game, but it can be frustrating to see them get so many cards because Jaden Yuki used them
It's great for swinging in for massive damage or getting rid of a problem card on the Field.
Most notably, Lily's Clefairy ex helps the deck counter Dragapult, delivering brutal OHKOs
Alternatively just run it with the really good Squirrel commander, Chatterfang, Squirrel General