This guy is the king of driving e-ink displays, although the current run is only 13.3 inch: https://www.crowdsupply.com/modos-tech/modos-flow

I have an e-ink phone from Bigme, and their refresh rates are pretty good to, but their only >20 inch display doesn't have touch support: https://www.aliexpress.us/item/3256807215559517.html