You can replace the peloton seat with a better one. This was a game changer for me along with the padded shorts. The padded cover moved too much on me.

This is the one that I bought based on a virtual bike fitting :https://www.amazon.com/dp/B006K0HAV6/ref=cm_sw_r_apan_glt_fabc_6J2MA5VN9P6KE5CGNCEA