The best gpu option for your poor G32-something is a titan RTX, but are you willing to pay for it? the thing is that people worry too much about this bottleneck thing. Yes you wont get the most out of a gpu if u have a terrible ass cpu, but regardless, if you place the 1050 and then for the kicks try a 1080ti, despite of the massive bottleneck, you'll still get better FPS with the 1080ti, of course even more if you had a better cpu, but then again you'd have better FPS on both cases if you had a better CPU.
what can you afford? the 1050? go for it, dont look back.