I ordered a Phottix Mitros + speedlite for my A7II quite awhile ago. It finally arrived from back order status.
The hope is that Phottix will get the Odin II finished and shipping in a Sony version soon. (There is an update on their website stating that its being tested by a photographer and should be ready before too long. The photographer doing the testing is a Canon shooter, but hopefully the Sony variant won't take too long after the Canon is done.)
Anyway, The Mitros + can be set to TTL on camera and it fires the off camera strobes without a problem below sync speed. It will not fire the off camera strobes in HSS mode which would be a nice bonus since my Cheetahlights have an H mode that is useful above the camera X-sync speed.
The TTL capability for the on-camera speedlite is nice because it can be dialed to minus EV compensation for fill.