The Tek Everything guy (who does S4 mini builds on youtube) recommended these to me and they've got good clearance: https://www.amazon.com/gp/product/B0042U6ZDU/?tag=theminutiae-20
I've recently gotten my first S4 done (I snagged #186 from a guy on r/sffpc) and just finished my Strix Z270 build...