What gfx do you think is the best for 250? I plan on selling the 1050ti.

AMD Ryzen 5 2600X 6-Core 3.6GHz Socket AM4
XPG SX8200 PCIe NVMe Gen3x4 M.2 2280 480GB SSD (ASX8200NP-480GT-C) w/ Black XPG Heatsink
G.Skill Ripjaws V 16GB (2x 8 GB) (Dual Channel Kit) 3000MHz DDR4 288-Pin DDR4
MSI X470 GAMING PLUS AM4 AMD X470 SATA 6Gb/s USB 3.1 HDMI ATX AMD Motherboard
Rosewill Gaming Computer Case - ATX Mid Tower - Top HDD Dock, Side Window Panel, 5 Preinstalled Fans - BLACKHAWK
PNY GTX 1050 Ti 4GB
Windows 10 Pro

GTX 1060 6gb, but won't be that big of an upgrade for esports style games.

https://www.frys.com/product/8943493?source=google&gclid=CjwKCAjwhLHaBRAGEiwAHCgG3qh35xt5UFOQ_MQdVbhGmuHPn4WPymQZjcxg-GCJscH6I08SIt6bfxoCqu4QAvD_BwE

Would that be a worthwhile upgrade to the 1050ti?

its weaker then a 1060 so no.

2nd.