On my end I've solved the relay discovery and and centralization issue by piggybacking on the ICANN-DNS solution I made (DNN). At the cost of a one-time self-transfer (1 sat v/byte). A decentralized network of these DNN nodes that's used for various DNS purposes, which propagate with each other, hold each user's relay list (and it wouldn't matter if they're popular or not), and users just fetch said relays of the people they follow and the local relay list gets built and you wouldn't miss any of their events. Users would then not worry about needing to post in popular relays so they post to wherever else. (There are other benefits, like no more npubs or the reliance on traditionl fragile domains for nip-05, spam resistant, WoT increase, and more).