Reply to Instrumentals of Vocal Electro/House Songs Website?

What's going on DJ Tech Tools. I hope this isn't a silly question but I am trying to find a good source to find instrumentals of vocal house, vocal electro, vocal progressive house. We are trying to put together a Vauldeville style evening and we want live vocal performances to happen as our DJs spin known vocal diva jams, Nadia Ali, Ellie G, etc. I know that not every song is produced with an instrumental version but I wanted to see if anyone knows of any source that might have thought of this and listed what might be available. Any leads will be very appreciated.