I think one Fanpost would be better than cluttering up the fanposts sidebar with tons of different fantasy league posts. Just rec this one and it will stay at the top for a good while. Most of the keeper leagues seem to be starting up now, so if anyone needs new owners, just start a new post for it, and people can reply to your individual thread for it. [much like how we vote for individual players in the community list]
I'll post the first reply as an example. owners can feel free to rec it if they feel it is a good league. or rec the individuals looking to become new owners if you have played with them before/currently and they are active players.