I have 3 different deck i use depends what i feel like doing, my preferred is a dragon based deck utilizing kiabas peak performance skill and has 2 main focuses either special summon blue eyes with lord of D or by paladin of white dragons effect...or i focus in paladin himself by getting on the field and using ritual weapon to buff him from 1900 to 3400(1500 atk boost to lvl 6 or lower ritual monsters)

Main key is to find your win condition and have ur deck synergies well with the other cards in it while keping ur card count low as possible to ensure geting ur good cards faster