Looking for friends to keep me accountable
Step one of that is friendship. And that takes time to find, then cultivate into something deep enough for accountability.
Having a friend that
A) will actually be around very long
B) know you well enough to know how to respond correctly when you screw up
C) care enough to want to be there when needed
It's possible, but finding such things online will take a lot more time, I'd imagine.
I think it works best when it's viewed as a two way notion. Good friends keeping each other accountable. Finding a one sided version of that will be pretty hard.