Oracle Linux has been there the whole time. It's free, and it tries to be bug-for-bug compatible with RHEL.

  C:\>wsl.exe -l -o
  The following is a list of valid distributions that can be installed.
  Install using 'wsl --install -d <Distro>'.

  NAME                            FRIENDLY NAME
  Ubuntu                          Ubuntu
  Debian                          Debian GNU/Linux
  kali-linux                      Kali Linux Rolling
  Ubuntu-18.04                    Ubuntu 18.04 LTS
  Ubuntu-20.04                    Ubuntu 20.04 LTS
  Ubuntu-22.04                    Ubuntu 22.04 LTS
  Ubuntu-24.04                    Ubuntu 24.04 LTS
  OracleLinux_7_9                 Oracle Linux 7.9
  OracleLinux_8_7                 Oracle Linux 8.7
  OracleLinux_9_1                 Oracle Linux 9.1
  openSUSE-Leap-15.6              openSUSE Leap 15.6
  SUSE-Linux-Enterprise-15-SP5    SUSE Linux Enterprise 15 SP5
  SUSE-Linux-Enterprise-15-SP6    SUSE Linux Enterprise 15 SP6
  openSUSE-Tumbleweed             openSUSE Tumbleweed