24-team leagues are the best but they're so hard to fill from scratch. The move is to make them recurring - if you get enough returning managers to get you over 12 teams then the second half will usually fill within a day or so. I created such a league last year and while the first league took a month to fill, all the leagues since have filled within a few days. Proof of concept! At any rate, we're currently filling our fifth league so I thought I'd put up a flag.
The wrinkle is the winner of the old league chooses the cap and DH format for the new league. So far we've done $100 DH twice, $60 no DH, $80 DH, and the one filling now is $140 DH, which is going to rule because it's my favorite cap and I've never done it with 24 teams. So if you're like me and often find yourself pining for 24-team leagues but they never seem to be filling, hop on our merry-go-round and you'll never want for a 24-teamer again! The league is Dog Days 5 and can be found here:
https://365.strat-o-matic.com/league/465342