You are interested in women needing spanking partners. It can be very frustrating when trying to find ladies in your area who have this particular sexual proclivity. Fortunately, there is a rather simple method.
You may well have found a few spanking fetish sites. My advice: avoid them. I can give you two good reasons. They tend to be very expensive; niche dating sites always tend to charge a lot of money. They also tend to have very few members. If you live in a medium-sized city like me, this last point can be a real problem.
What you should do is join one of the well-known mainstream dating sites. Pick any one you like, just be sure to choose one of the biggest; those with millions of members. These sites tend to be cheap or free (indeed, most of the better ones offer free members more features than most paid dating sites). They also give you an infinitely more important benefit: they enable you to find a lot more local women than one of those niche sites. And all you have to do is select the local women who share your spanking fetish. Some sites allow you to type in a search for this fetish; others allow you to tick a box; but almost all of these sites allow you, somehow, to filter the huge list of local women for women needing spanking partners.
So, speaking from personal experience, I can say it is best to avoid the specialist dating websites for spanking enthusiasts and, instead, cleverly filter local women who share your interest on big dating communities that offer free memberships and lots more features.