Highly recommend cases by Fractal.

For self hosting I’d recommend either one of the Meshify 2 or Define 7, depending on local price and your specific needs. I personally went with the Meshify 2 XL and was blown away by the quality of the case. It’s built well and allows for a variety of configurations. It also makes maintenance very easy as the filters and side panels can all be removed without any tool to handle dust build up.