The URLs I use, and have bookmarked, come from Forum posts. Give me a useful URL to start with, and then I can tweak it to fit my own purposes (oh - that is how you do that, but I want …)
https://forum.inaturalist.org/t/how-to-use-inaturalists-search-urls-wiki-part-2-of-2/18792
https://forum.inaturalist.org/t/how-to-use-inaturalists-search-urls-wiki-part-1-of-2/63
Not sure if these have already been mentioned ?