What 80plus PSU should I go with for these builds? Current: i3 7100 build and ryzen 1600 build

[gantzbless]

current
i3 7100
1050ti
8gb ddr4 2400
asrock pro4 or asus prime b250m plus

future
ryzen 1600
asus b350
gtx 1070
16 gb ddr4 3200

 

[QwerkyPengwen]

600w minimum for stock usage (in my personal opinion. though you can use a 500-550w).
650w minimum for basic overclock.
750w and above for more overclock.

For finding the specific GPU you want such as brand/model refer to THIS GUIDE

 

[hdgaming]

Really any decent 450-550w will be good.

I recommend something like a SeaSonic S12II Bronze 520W will be more than enough for both builds.