Step 1 – Create Global Security Group
This is optional but it will help and automate the process of making the created gMSA available to the hosts that will be running SQL Server as well as managing them.
Go to the OU that holds your respective Security Groups, right mouse click, New -> Group.
For the Group name I chose SQLServers, Group Scope is Global and the Group type is Security.
It it also good practice to give a explanatory Description for the group.