Yes, there is a portafilter especially for ESE pads. We bought this one and it works: Lelit Classic portafilter 58mm pads (1 pc.)

Lelit only supplies an e.s.e sieve for the "smaller" PL 81 with the 57mm portafilter. The PL 91 does not have one. I don't know if a third-party supplier offers a 58mm e.s.e filter that fits the Lelit portafilter and whether the coffee is also enjoyable with it.