Wait until fees on the bitcoin blockchain become higher again -- interest in Liquid network will jump.

Here's a post with a number of ways Liquid network can be used:

What is the Liquid Network? https://help.blockstream.com/hc/en-us/articles/900002016823-What-is-the-Liquid-Network-

I can hold the keys to my L-BTC (e.g., using Blockstream Green wallet), and can transfer that more quickly than I can with bitcoin (blocks on Liquid network occur every minute, and a transaction is deemed confirmed / final with just two block confirmations).

So if I want to pay an LN invoice but I don't have a node and I don't already have funds on an LN wallet -- but I have L-BTC, I can do something like deposit via Liquid network to CoinOS Classic and two or three minutes later I can then use those funds to pay an LN invoice. (I haven't done this since CoinOS created the new front-end so maybe someone might confirm this still works now that it is CoinOS Classic).

There are a couple other swap services that offer (L-BTC <--> LN BTC) as well (SideShift.ai and Flyp.me), but neither of those can be used from the U.S., and have a higher fee).

KYC-Free-Instant-Exchanges https://cointastical.github.io/KYC-Free-Instant-Exchanges