They are in my post history.

Ended up with 9 cases for my previous phone (12 PM)

Currently have 4 (3 in hand, one on order) for my new 15 PM.

15 PM here, no issues with overheating or with battery. Those were way overhyped.

Nomad Rugged case (blue) works for me. Love the case, the feel and grip and it’s magsafe.

Probably series 7. I believe that was the first that offered water resistance to allow for at least swimming. It is why I upgraded from my original AW to the AW7.

I forgot. Still more than worth it for me for some cool complications.

WorkOutDoors - low price, no sub required.

Fantastical - sub not required

Lumy - sub required, but cool complications.

Those are the ones I would recommend. I have others, some require subs, some dont. But most are pretty user specific.