Ansible-core devel’s ansible-test added support for RHEL 10.0: ansible-test - Add RHEL 10.0 remote by mattclay · Pull Request #85189 · ansible/ansible · GitHub
There is also a backport to stable-18, but it hasn’t been merged yet: [stable-2.18] ansible-test - Add RHEL 10.0 remote (#85189) by mattclay · Pull Request #85195 · ansible/ansible · GitHub
If you have access to the ansible-test VMs in CI (usually when using AZP), you can now add RHEL 10.0 to your CI matrix.