Poetic is another brand that we've recommended for years on end, simply because they make cases that work great. The Revolution series is always it's most rugged, durable, and industrial case of all.
The Poetic Revolution case for the OnePlus 7 Pro offers full 360% protection and has a built-in kickstand. Considering the 4-layer design they still manage to keep the overall size nice and slim, which is an added bonus.
With this case, you're getting a soft TPU lining on the inside, hard polycarbonate plastic on the outside, and it snaps together front-to-back with a built-in screen protector. That way the phone is covered from every angle. There are flaps covering the ports and speakers to keep them safe from dirt and dust, a fold-out kickstand, and precise cutouts for things like the pop-up camera. Oh, and this case has a military-grade drop certification too.
Get it on Amazon for $17