So I'm looking to replace my 3 aging fans (Corsair AF120s) in the front of my case with some new fans. I don't want to just straight up replace them with new but same fans as I've got 5 of them and all started to have a distinct motor noise after a few months of usage. No need for fancy RGBs but the fans need to be ok to look at, meaning brown Noctuas won't work, at all, no, stop it, they won't. However, I've been looking at some of the grey colored Noctuas, the NF-S12B redux PWM models to be precise. Those could work, if they're good. Also the magnetic levitation fans by Corsair seem like a rather good alternative? What fans would be the best for a ~1000RPM setting noise/airflow ratio-wise, just pure airflow with no radiators in the way.