Well I know that if you are buying them stepper drivers today and haven't yet made your purchase you should probably be looking at TMC2226 drivers instead. They are reworked tmc2209 drivers with better cooling capacity for the stepper driver. These guys right here are the latest and greatest you can get and the price is right as well: BIGTREETECH TMC2226 V1.0 Stepper Motor Driver – Biqu Equipment