I need CRM suggestions

I recently started my own business and am not really satisfied with the CRM I’m using (can’t use name due to spammy issues) , but it’s working for the moment. Problem is it’s a little clunky for me to use personally and the support hasn’t been great.

What other CRMs are out there that have the capability of having one user (me) with multiple sub accounts, without having my clients also pay for the same CRM?