Hard pan and a few milliseconds of delay
Record the same part twice. Pan one hard left, the other hard right. Then nudge one track about 10–20 milliseconds later.
That’s it. That’s the chorus sound.
The tiny timing offset creates a natural doubling effect — wider than a stereo chorus plugin, but not so wide it sounds like two different takes. Hard panning forces the ear to hear each side separately, which gives the illusion of a bigger arrangement.
If you want a bit more texture, sing the second take slightly differently — a little breathier or with a subtle pitch bend. But for that tight, pillowy chorus stack you hear on RÜFÜS DU SOL’s You Were Right, the timing nudge does most of the work.
Don’t overthink compression either. Keep both tracks dry or use the same reverb send. The magic is in the milliseconds.
Your chorus doesn’t need eight tracks. Just two, panned hard, and a little slip.