Rear wheel valve stem

Planning to replace the tire valves, with the new tires. The rear has an angled stem. Anyone have a recommendation between 90 degree and some thin less, like 83 degrees?

What is in there now works okay +/-(original) I believe, but cannot measure the angle

I had an ordinary straight valve put in and carry a right-angled adaptor which I screw on only when inflating the tyre.
I also carry an extension which makes attaching the pump much easier.
I've got one in my car, too.

https://rb.gy/ikrz5d

https://rb.gy/v3xiu7