I would try posting an invitation to the other fantasy threads as well as the pick em thread. Give a little sales pitch on the league. If you can’t get 2 SDMBers in the first pass, open it up to off-board friends who may be interested in playing.
As someone who has run various leagues over the years, the SDMB is pretty tapped out in fantasy interest and the board size has been declining, so it’s getting tougher and tougher, though I think we can probably pull 2 people out of somewhere. I could make the recruitment post in the other threads if you’d like.