You can tip people on the nostr protocol. stats are on zaplife.lol
you can tip musicians on wavlake
there's a Minecraft server called satlantis where it is used as a currency
there's a lot of plugins you can use to build your own lightning enabled apps on lnbits
the space is still young so a lot of software is beta, but there's plenty to play with
check out the plebdev course on udemy if you want to dive into lightning development