PC build, Streaming, Research

Wow, that's a really nice part build you have there. My only two quirks ;
1) Founders Edition cards will run hot due to less capable cooling than the dual-fan AIB cards. Also, I can guarantee that card is NOT worth $530, an EVGA ACX 1070 shouldn't run you more than $450, has a very good cooling system, and can boost clock pretty far.
2) 120GB SSD is a little skimpy if you ask me. Don't be afraid to pop in a 1TB hard drive or something so you can store more games. 120GB fills very fast.
 
My edits with +1 above comments and an OS:

PCPartPicker part list / Price breakdown by merchant

CPU: AMD - Ryzen 5 1600 3.2GHz 6-Core Processor ($193.44 @ OutletPC)
Motherboard: MSI - B350 PC MATE ATX AM4 Motherboard ($84.99 @ Amazon)
Memory: G.Skill - Ripjaws V Series 16GB (2 x 8GB) DDR4-3000 Memory ($149.99 @ Newegg)
Storage: SanDisk - SSD PLUS 240GB 2.5" Solid State Drive ($74.99 @ Amazon)
Storage: Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($43.78 @ OutletPC)
Video Card: Asus - GeForce GTX 1070 Ti 8GB ROG STRIX Video Card ($499.98 @ SuperBiiz)
Case: Phanteks - Eclipse P300 Tempered Glass ATX Mid Tower Case ($63.98 @ Newegg)
Power Supply: EVGA - SuperNOVA G2 550W 80+ Gold Certified Fully-Modular ATX Power Supply ($75.00 @ Amazon)
Operating System: Microsoft - Windows 10 Home OEM 64-bit ($92.99 @ Best Buy)
Monitor: Acer - GN246HL 24.0" 1920x1080 144Hz Monitor ($187.49 @ B&H)
Total: $1466.63
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-11-08 20:21 EST-0500
 
Solution
If you want to go 144hz with a ryzen, get a freesync/g sync.
But this is a different setup :

PCPartPicker part list / Price breakdown by merchant

CPU: AMD - Ryzen 5 1600 3.2GHz 6-Core Processor ($193.44 @ OutletPC)
Motherboard: MSI - B350 TOMAHAWK PLUS ATX AM4 Motherboard ($81.98 @ Newegg)
Memory: G.Skill - Ripjaws V Series 16GB (2 x 8GB) DDR4-3000 Memory ($149.99 @ Newegg)
Storage: SK hynix - SL308 250GB 2.5" Solid State Drive ($78.89 @ OutletPC)
Video Card: Gigabyte - Radeon RX VEGA 56 8GB Video Card ($394.98 @ Newegg)
Case: Corsair - 270R ATX Mid Tower Case ($44.99 @ Newegg)
Power Supply: EVGA - 650W 80+ Gold Certified Semi-Modular ATX Power Supply ($53.98 @ Newegg)
Operating System: Microsoft - Windows 10 Home OEM 64-bit ($88.89 @ OutletPC)
Monitor: LG - 34UM59-B 34.0" 2560x1080 75Hz Monitor ($357.99 @ Amazon)
Total: $1445.13
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-11-08 22:53 EST-0500