". . . what is the best solution?"

"Best" influenced by your requirements and size of topology and sometimes is debatable.

For instance, using a circle or ring connection between your switches is very simple and eliminates a single point of failure. Its major disadvantage is once spanning tree blocks one of the interswitch link connections, traffic that needs to flow between the "top" and "bottom" switches need to transverse all the other switches.

The often preferred topology is a hierarchy of switches in a tree structure. This often provides the least number of transit switches. However, failure of the root switch usually has a greater impact than lost of just one switch in a ring. (One solution to the problem just described, is what Edison is recommending, dual roots.)

For maximum performance, for 4 or more switches and that scales well, a hierarchal structure is best. If minimizing single switch failure impact to your network is important, you could safely just ring connect them for 2 or 3 switches. For 4 or more switches, consider either using the dual root hierarchy or if still relatively few switches, you might channel additional ports within the middle of the logical stack.