I have a terrible memory so I will try to list masternode coins I can remember expensive to cheap (some not implemented yet)
NEM
DASH
Stratis (not implemented yet?)
PIVX
Xtrabytes
Monetary Unit
SIBCoin
Renos
Transfercoin
Chaincoin (not implemented yet?)
BTA
Syndicate
Dynamic
Exclusivecoin
Waves has nodes but I think you would not class as "masternode" as the full supply is already released (but this is also in line with what Xtrabytes plans iirc and they call theirs a masternode)
I think all of those should have masternodes - apologies for any incorrect, and I surely missed one or ten, they all start to blur after a while if you are not in the coin with a node
Masternodecoins soon IncaKoin (NKA). There is a vote