Girl for a couple

My wife and I want to diversify our personal lives. We want to try several options but decided to start with a new girl in our bedroom. Where can you find such a girl safely?

Greetings! I must say that I have never used such a chance myself. But I have an idea how it usually happens. I have an account on a dating site. There is a section where couple seeking female - https://www.nastyhookups.com/couple-looking-for-woman.html I believe that the dating site has enough features to ensure the safety of such a search.