As for 120mm. I'd prefer the Noctua F12 chromax or Industrial for the black color scheme. Some other fans you can look into are the Be Quiet Silent Wings 3 High Speed. Corsair ML120 twin pack. Arctic P12 - value pack might be a better option depending how many you need. Phanteks PH-F120MP. These are the ones most will mention.
As for 80mm. I can't help. Haven't bought a 80mm or more so 92mm in years.
Noctua NF-F12 iPPC 3000! I've got the 140mm versions and they're great. They're deafening at full tilt but they're dead silent and move a ton of air at ~20%. Useful that I can crank them up when needed when benching
If you can wait I hear Phanteks has a new fan coming out as well that's following some of the footsteps as the A12x25. It's supposed to be fiberglass reinforced blades and 0.7mm tip gap. I'm hoping that while performance will probably be worse than the A12 that it's similar enough while being more affordable.