Please give my website,
2kfreeagent.com, a try. I built it because I was struggling with the exact same thing.
You can literally build a 3 person / pro-am team off the website. As the database fills up (
aka those looking to not play with randoms), there will be more players using it.
I've had many testimonials, including myself, who have found other players off the website and ran up 25 game win streaks simply because they are on the website
to play team ball.
That's my pitch. Just give it a try. Adding new features all the time to help the community.
I promise you'll like it. If you don't, just give me feedback on how to improve it.