Pardon my frankness, but to have bochurin start dating early is a rediculous, non-sensical idea! If the divorce rate among young frum couples is on the rise, which unfortunately it is, then having bochurim starting to date at an earlier age will increase that rate tremendously. Today’s bochurim are less mature, not more mature. SaysMe is right. Have the girls wait till they’re 21 at least, to start dating. They’ll be more mature too, and they’ll probably have some type of career path set up and have a more solid stance on what their looking for in a husband, as well.
As far as who is missing from the so called “Kol Koreih,” Start with many of the Ziknei HaDor such as Reb Yosef Rosenblum Shli”ta, Reb Chaim Epstein Shli”ta.