I got this one with a used LTE N9. Very sturdy (and bulky) and the buttons work and feel great. The version I have doesn't have a front screen protector but the tablet came with a tempered glass protector anyway.
SUPCASE. I own this one and it's super rugged. I removed the screen protector and got a glass one instead. It's awesome:
https://www.amazon.com/SUPCASE-Full-body-Protection-Unicorn-Protector/dp/B00ONRSSF0