So the biggest thing with a business is figuring out taxes, so for that reason a lot of people are gonna use OpenNode, but if you're not worried about that and you got a accountant who will go through all of your transaction history to figure it out, breez has a point of sale integrated into it, but the splicing update in Pheonix will mean they're going to be the cheapest self-custodial LN wallet in town.
Pheonix has not yet released their splicing client, its in the beta testing phase right now so.