Looking for mixed games coaching at an intermediate level.

Hi, I'm a long time NLH mtt player that's gotten quite bored of it and am looking to learn mixed games.
I am not a complete beginner, have played a little bit and watched some training material, but I would guess my level is still relatively low.

Not looking for mix game end bosses as I'm not quite at that level yet and I don't think it would be the most efficient way to improve.