Help with upgradging My Gaming Rig and Gaming setup

[MNPGames]

my rig is
Asus gtx 1070 fe
intel i7 6700 @3.50 Ghz
8 GB of Ram
1920x1080 monitor @60Hz
1TB HDD
B150M Pro gaming motherboard
SHOGUN 700W 80 Bronze

what should I upgrade? maybe add a ssd? what version? and if not upgrading anything, what keyboard/mic/camera/gaming mouse..ETC do u recommend ^_^?

 

[anti-duck]

I would upgrade to a 1440p native or 144Hz 1080p monitor and bang in an 850 EVO.