Yea, LNbits is what I would go with if someone was comfortable running their own node. It seems LNBits has a hosted version in the works, available for demo currently. Fee is 70 sats per hour. So around $18 per month at current prices. Alternatives would include getting a hosted node through Voltage and paying ~$30 a month for a full node running LNBits. I also see Voltage has a BTCPay Server node for ~$9 per month. For a merchant new to lightning, having the Voltage support would likely be a big plus.