[BPI-R4 Pro] "best" case for R4 Pro with Noctua FANs?

Hi, before i order the regular case from bpi for the r4 pro, i am wondering which case is best suited in use with noctua coolers. I dont have a 3d printer so i must buy it. Also wondering if those coolers on the side are really neccessary or if its enough to cool from top only - i assume those listed in Banana Pi BPI-R4 Pro FAN are loud