This are the coins I do know they have Electrum
Bitcoin
https://electrum.org
https://github.com/spesmilo/electrum
Litecoin
https://electrum-ltc.org/
https://github.com/pooler/electrum-ltc
Dogecoin
https://github.com/electrumalt/electrum-doge
Dash
https://electrum.dash.org/
https://github.com/dashpay/electrum-dash
Vertcoin
https://electrum.vertcoin.org/
https://github.com/vertcoin/electrum-vtc
Help me complete the list please :)