Best FX Amd Cpu for dedicated streaming?9

Hi so I have two questions, Firstly: I took the socket cover and lever off of my ASUS Sabertooth 990FX R1.01 motherboard, I was wondering if the CPU would still function in it with a heatsink on, I would be very careful while installing the heatsink but I guess I just want to know if it is possible and I don’t need to somehow replace the socket cover. And secondly: Which FX AMD CPU would be best for dedicated streaming at 1080p 60fps to twitch using OBS or whatever or if AMD CPU’s are even good enough for dedicated streaming.