Check out Joker's alternate costume renders - Nintendo Wire
Amazon.com: Nintendo Amiibo - Joker - Super Smash Bros. Series - Nintendo Switch : Video Games
All Joker Alt Costumes in Super Smash Bros. Ultimate - YouTube
Gallery: All Of Joker's Smash Ultimate Alternate Costumes, Kirby Hat And Mii Outfits | Nintendo Life
Super Smash Bros. Ultimate Joker screenshots, a look at alternate costumes
Gallery: All Of Joker's Smash Ultimate Alternate Costumes, Kirby Hat And Mii Outfits | Nintendo Life
These are all of Joker's alternate costumes, ripped directly from the official website. You can find them over with this link: https://www.smashbros.com/assets_v2/img/fighter/joker/main.png (just add the corresponding number at the end of "main"
Smash Bros. Joker recolors [Persona 5 Royal (PC)] [Mods]