Just few one
i think the less costly you can possibly get is GTX 580 but here price probably are different from where you live so ill tell you some more graphics card that should be fine
(minimum)GeForce GTX 660 2gb (less powerful)
Radeon HD 7950 / R9 280
Radeon HD 7950 /R9 280 X
Radeon RX 470
Radeon RX 580
GeForce GTX 1070
GeForce Rtx 2060
Geforce GTX 1080
Radeon RX 5700 XT
GeForce RTX 2070 SUPER(more powerful)
But anyway we need to know all your other pc component to be sure that
1)All your component are compatible with a new graphic card that you choose
2)You need to be sure too that your other pc component won't limit the graphic cards
example:
if a game require 5gb of ram and a g GTX 660 if you have 1 gb of ram even if you buy...