Hey here are a couple options:
https://umap.openstreetmap.fr/en/
I found them here: https://safereddit.com/r/degoogle/comments/182z7i6/alternative_to_google_mymaps/
In the name of all that is green and good, proceed with caution. There is no good reason to share *foraging* info with non locals and folks who don't know how to forage. The best intentioned folks do the most terrible things.