When people have skin issues, I often post this link:
https://dermnetnz.org/
It
is a site for skin issues and has numerous photographs. We all know
that there is more to it than "looks like" and some diagnoses require
biopsies or other techniques. But it is a start.
The site says about itself:
DermNet is the world’s leading free dermatology resource. We help thousands of people make informed, evidence-based decisions on how to care for skin conditions, by providing reliable information at the click of a button.
If you find anything incorrect, misleading, typos, links that don’t work, etc., please let me know. Go to my profile and use the contact details there.