@Lash,
Perhaps there are but I haven't seen them and, I suspect, human nature being what it is, if there is an excellent site, there is only one.
I used, briefly, sporadically and over a period of more than ten years, match.com, zoosk, a service for graduates of Ivy League and comparable schools, plenty of fish and yahoo matches. Zoosk, the last I used, and yahoo, the first, were the worst.