Is there any cryptocurrencies other than BTC and XMR that people are actually using?
You may be surprised, but I dont even know what is XMR and actually dont want to know. People use BTC and ETH the most. Coinmarketcap clearly shows it
Looks like you have been living under a rock...
Yeah BTC, XMR and LTC are the only ones used for payments atm. ETH is used but not for payments really... Other alts not so much, until they come with some breaktrought technology like IOTA that actually works, i don't see the need for them.