There was a thread a few months back for the Pok-Emotions game with a focus on Sleepy linked here which would likely give you a starting point, but I would imagine it is not all inclusive to every card with a sleeping Pokemon
Fire Fists do have options for Fusion and Synchro monsters which are integral to a Fire Fist Deck's strength, but instead you can double down with more Rank 3 and Rank 4 Xyz monsters, which the archetype is known for having a good engine
Unexpected Dai N3 Raigeki N1 Twin Twisters N1 Chicken Game N3 Moon Mirror Shield N3 Terraforming N1 One Day of Peace N1 Traps Armory Call N1 Starlight Road N2 EX Stardust Dragon N3 No.39Hope Emperor Hope N2 No.41Bugska, the Drunken Monster N2 Castel, the Skyblaster Musketeer N1 Superdreadnought Rail Cannon Gustav Max N2 Donna, the Skyblaster's Pocket Sword R1 Linkuriboh NP1 Mekk-Knight Crusadia Avramax SR1 Selene, Queen of the Master Magicians SR1 Salamangreat Almiraj SR1 #This is the fruit of our bond
Every box receives a serial number tied to its source, and a single confirmed fake is enough to permanently ban that supplier
This makes many staple cards way more affordable than ever before, which is especially great for Yu-Gi-Oh