Some of the suggestions here may be helpful for you:
https://forum.inaturalist.org/t/what-to-look-for-in-a-dissecting-microscope/17440
I don’t know much about identification of these groups, but are you only looking at very small structures, like spores or single cells? I would think larger morphology would be important, requiring a dissecting scope or a good hand/macro lens.
I won’t say this is impossible, but it may be difficult.