I've been running a head to head dynasty league that has been running for several seasons. Its six by six ( we use holds as a stat with OPS to balance that out). Its a 12 team league.
We have one open spot. The team was next to last place last season. But we are debating about ways to make the weaker teams stronger ( the real problem was the fact that some of owners weren't active).
We've been able to add some new blood to the league that I think will lead to a more active league. If you'd like to join leave you're email or email me at firstname.lastname@example.org. I will then invite you to join the league. But hurry, the position could be filled soon.