Try this project - but you will have to work at finding a taxon that interests you, and a useful ID tip.
https://www.inaturalist.org/projects/observations-with-id-tips
I tend to use the ID tip when I come across it while IDing - to work thru the relevant slice of obs - now I can tell A and B apart. For example Southern sp, South of the Fish Hoek gap
Or a more erudite discussion https://www.inaturalist.org/observations/10960302
Another option - if you know how to ID a plant - is to check whether it is Included or Pending for CV. If Pending, we need about 60 obs.