I use both lightning and Cashu. Each has unique advantages and disadvantages, so I can't call them a replacement for the others.
Yes, trustless swaps:
https://basicswapdex.com/
https://unstoppableswap.net/
Coming Soon:
https://serai.exchange/
https://github.com/decred/dcrdex
No-KYC fiat ramps:
https://haveno-reto.com/
https://bisq.network/
https://dex.robosats.com/
https://coinatmradar.com
Kraken, KuCoin, HodlHodl are centralized fiat ramps - KYC obviously