The Alternate History Baseball League ( AHBL ) has an opening with the 2001 Cincinnati Reds, Houston Astros. Milwaukee Brewers, San Fran Giants & Seattle Mariners
https://statsplus.net/ahbl/
AHBL started in 1954 and has been continually in operation for 47+ seasons. Now in the 1997 season we have a rich history that truly make us the alternate history of MLB.