Sitecore Client Account Managing is the right role to add/remove users.
From Sitecore Documentation :
Gives the user access to maintain users, roles, and domains in the
Access Manager, the Domain Manager, the Role Manager, and the User
There is no OOTB functionality to get users that can remove other users, but you can use some workarounds.
I suggest using an API call below to check if you have enough permissions to call the User Manager application for the current user:
Then you can go through all users and you can use ...