What are my options if I want 3-pin fans that push more air than Gentle Typhoons (D1225C12B5AP-72), but aren't quite as loud as noctua ippc-2000s? I have a server grade motherboard that doesn't like pwm fans, so I'm sort of stuck with 3-pin models.
Any thoughts?

The current fans I have (2x Noctua NF-P12 redux-1300 on the radiator, 1x Dynamic X2 GP-14 for exhaust and 4x Gentle Typhoon D1225C12B5AP-72, 3x for input and 1x blowing laterally on the mobo/bcm) are all collectively silent - I can't hear them through my case. The issue I'm having is I would like slightly better temperature on my BCM - this is all connected to a Gigabyte MC13-LE3.
This isn't critical, but I wouldn't mind a little more noise for better performance, but something as beefy as a single 3-pin Noctua NF-F12 iPPC-2000 pointed at the mobo/bcm generates enough noise that I can hear it anywhere in my small apartment. So effectively, I'm looking for something in the middle between the group of fans I have an the aforementioned industrial noctua fan.