It took us two years to find our first playcouple. We had a good time (especially Mrs. Alura) and have never been sorry we did it. Unfortunately, the other wife had some jealousy issues and the resultant drama assured the friendship wouldn't continue.
Not only was the sex fun, it gave us some experience that assured us we'd have no issues between the two of us if we continued. As an experienced couple
it took us only a couple of weeks to find our next playcouple. A good friendship developed and we played with them for several years.
Perhaps y'all are over thinking the situation by trying to find the perfect couple to begin with. You'll never know if they're perfect until y'all've had sex with them. Even if it turns out to be a less-than-perfect evening, it's not likely to be something you can't leave behind.
We can't offer advice on single males. They're not our cup of tea. We prefer to take turns with our usual playcouple having MFMs... FMFs, etc. There are so many more and so much better possibilities, in my opinion.
Mr. Alura