I had a fellow CC female member tell me, "Shy and introverted guys are the ones you really want, because they are often humble and will make great fathers". But these shy and introverted guys will have a hard time initiating conversation with a woman.
Not because they are bad, or something is wrong with them, but because it often comes with being humble and intelligent. They don't want to hurt your feeling or appear creepy. And this doesn't mean they won't be assertive if their children are being bad later on, and doesn't mean they won't take charge, and doesn't mean they are weak.
With shy and introverted guys, the lady really should do something to make it pretty clear that she is interested.
P.S. Finding them on a dating website, and hitting "like", or "flirt" or whatever is a good idea. That recently happened to me with someone I know in real life, and it was very nice. I actually kind of like her back, but did not want to appear creepy, and now this made it a lot easier.