Car
AR or VR
Macs (for like 5 years they ignored the space while releasing trash...now they're firing on all cylinders). If Iphone can be ~50:50 in 1st world countries, no reason Macs can't be.
Any other uses of Apple Silicon (AS is so far ahead that they could for example resurrect servers or offer a cloud offering and be competitive if they ever wanted to)
iWork... Desktop Pages/Numbers etc are decent. It wouldn't be that crazy for Apple to start competing more with Google Docs/MS Office.
Phone...they've only saturated 1st world. 3rd world has YEARS of growth ahead.
Gaming...their chips are best in class across the board. Culturally they DON'T understand gaming so they do boneheaded things (like refusing to bundle Arcade with a controller). But it wouldn't be that crazy to envision a world where they wake up and decide to compete.