Tier 2: Probables
George Springer was at the major-league level with the Astros from 2014 to 2020, and like Altuve, was one of the original center pieces of the 2017 championship team. In his time with Houston, he made three All-Star teams and won the 2017 World Series MVP.
The World Series MVP is really what puts Springer ahead of the pack here. For a franchise and city that had never won a Championship, their first World Series MVP winner means a lot. He also won two Silver Slugger awards during his time in Houston.
He will probably not be a Hall of Famer due to his time in Houston, as he fails all four of the Baseball-Reference Hall of Fame tests. However, due to the effort he put in during a time when the club really need it, and thanks to everything he did off the field, I think his number is eventually retired.
It might not be very soon after his own retirement, but I think that eventually it does happen.