I just posted Payjoin-in-Potentiam to fund LSPs to open channels on your behalf in one atomic transaction. This is an optimization of Swap-in-Potentiam that posts only half of the bytes to the blockchain to achieve the same outcome. Check it out on Delving Bitcoin: https://delvingbitcoin.org/t/payjoin-in-potentiam-externally-fund-an-lsp-channel-open-with-one-transaction/749
This requires participation of an LSP, did you get any to try it out?
Nomination to change the name from "payjoin" to "pretty gould privacy."
Privacy Is Never Good Enough (Ragequit) or PINGER