Two more options added to the list. Thanks! I'm going to make a spreadsheet of all the options I can come up with, with columns for custodial/non-custodial, cost structure, method of support (if any), largest pros and cons that come to mind, etc. 

ACYK

As of last month BitPay now supports Lightning payments

BitPay sucks, if you really need centralized third party payment processor, check out 

, they were the first ones integrating Lightning years ago.

BTC Pay Server is a great option for the more tech savvy merchants

Yes, BTCPay Server is probably the best option. Another lightweight alternative is 

bitcoin

Easiest onboarding options for small businesses to accept lightning

> As of last month BitPay now supports Lightning payments

BitPay sucks, if you really need centralized third party payment processor, check out [CoinGate](https://coingate.com/), they were the first ones integrating Lightning years ago.

> BTC Pay Server is a great option for the more tech savvy merchants

Yes, BTCPay Server is probably the best option. Another lightweight alternative is [SatSale](https://github.com/SatSale/SatSale).