I will try
Here in Brazil, teams that do not have a national division (series A, B, C and D) only play in the state championships State championships generally last 3 months So, all teams that only play at the state level sign 3-month contracts for the duration of the championship You asked for examples but it's complicated, as this happens to literally everyone who only plays in the state and I also don't know how exactly the contract period of real players is seen. but theoretically what you should do is see the championships that the teams are competing in or can qualify for this year to compete and make clubs sign players until the end of these championships