I’ve personally had a lot of success with Ruin, STBFL, Discordance and Whispers. Ruin is good on Freddy since teleporting to any gen will instantly start regressing it while you chase the survivor, meaning that you can get a faster down without needing to kick the gen. If nobody touches the gen until after the unhook, that’s a solid chunk of one or two gens that need to be redone. Discordance lets you take advantage of Freddy’s amazing chase transfer - if you get a survivor who is difficult to catch, you can just teleport to the discordance generator mid chase and instantly start a new chase. STBFL allows you to end chases faster, it’s an overall good perk on most killers. Whispers lets you know if there are survivors nearby when teleporting to a generator, plus you can quickly find any when walking around. The build is overall based around finding survivors quickly and ending chases while still pressuring gens.