Welcome to the forum. If you must have a label, you could identify as poly, though, I would hold off on the identifiers until you actually try a poly relationship out. Solely having sex with others is not poly. I also would make sure that you and your partner have sat down and thoroughly discussed what type of woman is the 'right' type of woman for you both. And, finally, just like searching for a partner in general ... be detailed on the things that are very important but have some flexible on everything else.
I hope you find what you seek.