Since you are looking for the best Saab 340 experience in Microsoft Flight Simulator (MSFS 2020), the market has shifted recently. For a long time, there was only one option, but now there is serious competition.
Cold and Dark Starts: To get the full experience, avoid starting on the runway. Learning the overhead panel sequence—battery, avionics, and the specific start-stop cycles for the engines—is where the Saab 340 truly shines. Enhancing the Experience with Liveries and Routes saab 340 msfs 2020 top
The base paint kit is great, but these community liveries are considered the top downloads: Since you are looking for the best Saab
However, if you want to try the plane out for free before buying, the Headwind Simulations version is still a respectable and fun aircraft to fly. Learning the overhead panel sequence—battery