Best cut for sous vide steak?

Strip steak

I usually do filet or strip, just depending on mood.

You can't go wrong, it will handle any of them just fine.

Which ever is your favorite cut, and as long as it’s thick.

Any cut that is whole muscle like a strip or filet.

My favorite steak to SV is Flat Iron. Such a flavorful cut & second most tender steak on the cow.

Place a couple of crushed garlic cloves & a few sprigs of thyme & a knob or two of butter in the bag with the steak.