Hi there,
I’d recommend going with a cedar barrel sauna. It’s durable, naturally resistant to rot, and smells amazing when heated. For ease of use, an electric heater is very convenient, though wood-fired gives a more traditional experience if you don’t mind the extra work. The barrel shape itself is great for heat retention and circulation.
If you’re looking for the best barrel sauna, a 6-foot cedar model usually fits 2 to 4 people comfortably. Assembly is straightforward if your foundation is level. Pros of cedar include being long-lasting, low maintenance, and aesthetically pleasing. Cons are that it is more expensive than pine, and electric models need a proper power hookup.
Overall, cedar plus electric is a solid, low-hassle choice.