at this price point I guess you can go for a scythe mugen or fuma, basically any with 6+ heatpipes, R5 2600 is like 140 W under a heavy load, my dark rock pro 4 can keep it under 60°C with fans spinning under 600 RPM at stock, my ryzen is not a golden chip, I could OC it to max 4.1025 GHz (CCX 1, CCX 2 was @ 4.1), but the voltage was already over 1.4, which I'm not really comfortable with in a long run. Ryzens don't overclock much anyway.
RXes are better than nvidias (1060) at some games, so you won't go wrong if it's one of the games you play, it's just they were used a lot for mining, haven't checked the prices of GPUs for some time now, it might have dropped down, but it used to be very expensive lol.
oh yeah and when my R5 is overclocked it runs under 70°C under load
btw your case has a plastic window, just saying.