Personally was always a fan of just going with the largest fans possible - surprised we don't see more cases designed around 140mm and larger. 200mm is much less common but has a more pleasing noise profile
I'm also a fan of that sort of setup. A Fractal Meshify 2 XL will fit a bunch of 140mm fans, or you can get the Torrent which is smaller but has 2x 180mm fans up front. I have both and would recommend them, though the Torrent is a tight fit for a big board, and the shield on the back of the Asus W790 motherboards interferes with the cable routing grommets on the motherboard tray, so you have to remove them.
I'm also a fan of that sort of setup. A Fractal Meshify 2 XL will fit a bunch of 140mm fans, or you can get the Torrent which is smaller but has 2x 180mm fans up front. I have both and would recommend them, though the Torrent is a tight fit for a big board, and the shield on the back of the Asus W790 motherboards interferes with the cable routing grommets on the motherboard tray, so you have to remove them.