If you want to run full-rbf, and don't have any full-rbf peers, you can connect to these nodes:
full-rbf1.tbtc.petertodd.net
full-rbf2.tbtc.petertodd.net
full-rbf3.tbtc.petertodd.net
full-rbf4.tbtc.petertodd.net
...and for testnet:
full-rbf1.tbtc.petertodd.net
full-rbf2.tbtc.petertodd.net
full-rbf3.tbtc.petertodd.net
full-rbf4.tbtc.petertodd.net
I've also made a branch of Bitcoin Core v24.0 with preferential peering, to auto-connect to full-rbf peers:
https://github.com/petertodd/bitcoin/tree/full-rbf-v24.0