I find it tough too. I joined a mother's group when my son was young. Of course, that was mainly women but it did get me out to parks, play places, and other areas single dads can be too. That was years ago, and I am still single, but it is worth a try. Whatever you do stay away from the men on here who don't have children - what could they possibly be on a parent site for?
I would have to agree with you tough to get to know anyone when I am always with my son. I like spending time with him all the time but sometimes just need to be an adult. My family lives 500 miles away and my sons mom lives 4000 miles away so not a lot of chance to get out and meet people. That is why I am trying this out.
You are right. But again online dating can be risky for all emotional friends. With so much online from counseling to "Date-fixing" to some ultra cool dating quizzes like the one , you will never feel bored. :-)
Some communities have timeout groups for single parents, letting you meet others while the bambinos are looked after by the organizing association/agency. Some of these groups are free.
Get out with Family & friends, even social get-togethers. It increases your chances!
Try network groups like Parents Without Partners or the like. They put together social outings that are safe for you & yours.
All the best!