Harrogate is not well known as being one of the swinging capitals of the world.

But it's a nice place. I do believe it's got one of those delightful statistics. More old people than any other region of the U.K. etc.
I couldn't actually tell you where to go or where would be a good spot for link ups etc.
I've always thought just go with the flow. Go where you fancy going, where YOU are comfortable and take it from there.
Yours is a question that gets asked a lot on here and quite frankly it stumps me every time.
An example. I am out with my partner for the weekend. Staying in a smart hotel. We go out for the evening and find a pub in town. It's busy. Other couples, single girls and boys.
Just how do you attract a single male to join you...... With the intention of him ******** with your wife.
Believe me it's something I have done in the past and it's difficult. Unless your wife is actually going to go out there and try to pull. It's damn near impossible.
Good luck.
stevensmiles