list of freecad unit systems, each of which have a couple of example units after them. not consistent example units though. one says "in, lb", another says "ft-in, sqft, cft", another says "mm, N, s"
https://sparkly.uni.horse/system/media_attachments/files/113/455/377/806/120/209/original/605d8ec93c4dcdfd.png