I think you still do not understand the format of IPL in 15 years. A player cannot join just any team based on his preference and he must go through an auction to any team. Chris Gayle, the 42-year old Jamaican giant has announced his return to IPL 2023 and said that he wanted to win a trophy for RCB or Punjab Kings next year. However, this is not how things work in IPL and even if Chris Gayle wants to go to some team, he must be a part of the auction and there his team would be decided.
Tell you what, it might be difficult for Chris Gayle to be a part of any team now considering his age. However, while he still has good hitting capabilities, some teams might consider him an option.