I've tried everything including the Airpods Pro, and the only earbuds small enough to not cause my ears discomfort are the Klipsch X11i and X12i. They use some

I've tried everything including the Airpods Pro, and the only earbuds small enough to not cause my ears discomfort are the Klipsch X11i and X12i. They use some of the smallest balanced armature drivers made by Bosch.