58mm Coffee Distributor & Tamper,Dual Head Coffee Leveler Fits for 58mm Breville Portafilter,Adjustable Depth Espresso Hand Tamper

the only thing i recommend is a scale, and a tamper/distributor that is consistent, maybe a funnel. i use something like this one one side distributes, the other side is a fixed tamp, https://www.amazon.com/dp/B08MLDHX13 doing WDT/RDT is a waste of time generally.