I'm being force to upgrade past high sierra (Fusion360) and I hear I can't keep my GTX 1050.

Fusion360 will stop supporting High Sierra in April so I need to upgrade, hopefully all the way to BigSur.

What is an equivalent/better card that will give me no drama and be cheap?

This is a combo light CAD and gaming machine (runs my games just fine) and has worked well for years, I really don't need more GPU power unless its a cheap upgrade.

Current Card: Gigabyte Geforce GTX 1050 2GB GDDR5 128 Bit PCI-E Graphic Card (GV-N1050D5-2GD)

Motherboard: Gigabyte LGA 1150 Intel H87 HDMI SATA 6Gbps USB 3.0 Micro ATX DDR3 1600 Intel Motherboards GA-H87M-D3H

Thanks, I'm completely lost.