BTCpay, yes. Lightning Network, at the rate it's going, absolutely yes. And I recently came from a conversation that's alerted me to new developments with Eclair wallet that makes it almost easy for people to immediately start using LN. You could link to Eclair documentation to try and get users to do it.

If you really want and you don't mind that you don't have private keys, or coin control, then in addition to faucethub, you can also use Coinpot (the wallet of mega faucet moobitco.in) and MoneyPot. Both are suited for micro transactions as there are no utxos, and I believe if the 0 fees and instant even if between same wallet users.