I am trying to find something relatively clean and simple so as to not overwhelm the user/client. It should have some ability to be expandable as their comfort level increases. I was looking at Clarion..suggestions or comments?
The Clarion template is a favorite among many. It is indeed clean and simple, yet offers robust features across the board.
Choosing a template is really a personal thing. The visual of course is the first thing that attracts one to a template when making a selection.
The next consideration is function and what the template may offer out-of-the-box.
The only thing the Clarion template doesn't offer at present that some of the newer templates do is the capability for responsive layout. The newer Fracture and Kirigami templates both offer responsive layout.
This may change for some older templates in time... the key word here however, is "time."