Pioneer Valley Fern Society
I would like to give a shout out to The Pioneer Valley Fern Society, of Western Massachusetts.
https://pvfernsociety.org/
This group of naturalists has many decades of knowledge of ferns.
If you are near Western Massachusetts, go to their page and sign up for their guided tours.
The photos of ferns are extensive. The ferns around Mt. Toby are many and varied. Several of my photos are from Mt. Toby as part of one PVFS tours.
If you are able to attend one of their tours you won't be disappointed.