Currently, Centos 7 is end of life in June 2024. Since the recent update, Plesk also runs on Alma Linux, and some users think that this will be the proper replacement for CentOS in the future, because it is RHEL compatible and an upgrade from CentOS to Alma Linux is supported by Alma Linux with some simple commands. However, at this time, Plesk does not yet support such an in-place ugprade.
If you have a new server, it may be the right choice to start with Alma Linux. For existing CentOS 7 installations, you can still stay with CentOS 7 for a while.