Today I'm using Alltrails and also Trailforks to find hiking and mtb trails. However, I'm also trying to replace as many proprietary apps and services with open source alternatives. So, what is the best open source alternatives to Alltrails and Trailforks?

I have seen Wanderer which looks like what I'm looking for, but perhaps there are other alternatives with more users/trails or something else that makes it better?
Endurain is, as I understand it, for self-hosting which is nice but I also want to see trails that other people have uploaded in order to be inspired and find good trails when I visit a new place.

Are there any other sites I should consider?