The main decision you need to make about fermentation is to decide which materials the fermenters will be constructed from. Glass and stainless are more expensive, but both are longer lasting and easier to keep sterile. Food-grade plastic produces good beer, as long as it is kept in good condition, but will not have the same longevity as a sterile vessel.
*1/5/23 NOTICE ABOUT GLASS FERMENTERS: We have temporarily discontinued our Glass Fermentation kit due to very high cost of the large glass carboys. We hope this is a temporary pandemic related issue.