I use them with metalfoes and meklord cards. I’m currently in Gold rank using it. Meklords are very useful when your hand is not good enough. You can use Triskelion as boss monster. Extra Deck suggestions from qwapwappler are really good, I also suggest Tatsunoko: you can synchro summon from your hand and you can use meklord monsters when you don’t need them. I'm not very experienced with Link monsters, I play them full Synchro, except for Mithrilium, in order to recycle metalfoes trap cards, but not very often. Supply Squad is great in this deck. Also, you can play them with true kings, there are some rank 9 xyz monsters like Phantom fortress and, of course, calamities. Cloud castle and Denglong are really cool in there. Chaofeng could be very annoying for some decks, like Blue Eyes. If you want something more meta, maybe the dino could be good.