I like my mini-ITX case (Phanteks Shift Air 2) because it hangs the GPU from the top and it's sitting behind a mesh so it still has ample access to fresh air.
https://www.kitguru.net/wp-content/uploads/2020/12/2-Still-8...
https://www.kitguru.net/wp-content/uploads/2020/12/2-Still-8...
Anyways, you can see the photo here: https://www.kitguru.net/components/leo-waldock/phanteks-evol...