I think something like ship_manifesto would be great, exclusively for femslash - people sign up for their favourite pairing and provide picspam, recs for the best episodes/comics/moments in canon, recs for awesome fanworks, etc. I know ship_manifesto has gotten me into plenty of fandoms, just because I wanted to find the cool pairing I'd seen described in loving detail.

If someone wanted to set up and run such a comm, I would volunteer to write about one or more of my favourite femslash ships. :)