In NRL Fantasy, there's a new thing this season where, once you have a team in a league, you can then click on "Leagues" (directly to the right hand side of My Team, second line down on the left hand side).
And when you get there, you can scroll down beneath the leagues you're in to where there's 3 line s - the middle of which says: Leagues to Join." Here you can type anything you like, say Tigers, Wests, Wests Tigers, Balmain, NSW, Blues etc etc any name or random thing that might be footy or team related.
And if there's a vacancy in any of these public leagues, you can join any or all - there's no limit to how many public leagues you can join - and all with your single team that you nominate - all leagues yo go in will have your single team entry.
Happy league joining!!