upgrading the PC a bit confused

[Kadir-1]

hey guys i hope you are all doing well, so the reason i am writing this is because im not really sure that my gaming PC will last for the upcoming games with a decent FPS.
So i have been thinking of to upgrade it or not, im really confused.

My current SPECS:
i7 7700k 4.20GHz
G.Skill Ripjaws V 2x8GB RAM 3000mhz
EVGA GTX 1070 Hybrid 8gb
GIGABYTE GA-Z270-HD3P
Toshiba 2TB HDD 7200rpm
NZXT S340 Black/Blue
Corsair H100V2 AIO
XFX 850W Core edition bronze PSU
still don't have an SSD

 

[rgd1101]

get a ssd. what games? what resolution/monitor?

 

[Kadir-1]

get a ssd. what games? what resolution/monitor?

I have 1920x1080p Monitor 60hz right now (i know it sucks) but i will get a 144hz one soon, i'm playing BF1 right now, i will play games like Far cry 5, PUBG, Battlefront 2, AC origins etc etc...
PS:can you recommend a good Fully modular PSU for my build and a SSD(till 100$ price for the SSD)

 

[Dropment]

https://pcpartpicker.com/list/qYL2YJ
this is a really good psu and samsung always make great ssd's and this is under $100