If a studio version doesn't exist, you can "patch" your own using AI stem separation technology. How to Easily Get Acapellas to Remix in FL Studio
When you have a 24-bit WAV of 2Pac snarling "That's why I fucked your bitch" and a silky Biggie verse from "Juicy" in the same folder, you realize they operate on the same tempo grid despite opposite coasts. 2pac shakur and notorious big acapellas and i patched
My patch chain looked like this: