I use atomic swaps between Lignting Network (LN) and Liquid (L-BTC). Going LN to L-BTC helps me maintain channel balance. Open a new channel, atomic swap to L-BTC, and you have instant, inexpensive inbound capacity.

I also send smaller amounts of LN to L-BTC to accumulate until I have a "right-sized" UTXO to send to cold storage.

I am using Blockstream Jade to self-custody the L-BTC, well as much as that is really possible.