try this mod on brand new world (it will be depended the world on the mod, don't know how to fix that yet.. if I can even)
Basic piglins
Pigtaurus which killed loose its body and drops pork (in comments gimme ideas and I'll add them to every single mobs in mod)
Megabrute which would trade something for gold blocks (kinda does not make sence cuz brutes doesn't trades but in comments zou can choose what could thez trade)
Piglin God (Principality) which is hard to slain (cuz he summons megabrute on single damage he takes) and besides he doesn't do anzthing else, only he drops pigtion which you can craft into a lighting staff...
Nether butterfly if killed there is chance to summon thy god
Piglin king, when killed will release 4 piglins, so save them boss!
and lastly Bone Serpent which could swin in lava ocean but they just sink down...
Biome
Mold biome which is nothing special does do few spikes and new blocks
thats should be all go explore nether :D