cooler fans

I have 6 lian li sl inf 120 argb white fans in total, they are spinning but have no rgb. 3 fans are dasiy chained and a separate 3 fans are daisy chained, both are connected to sl infinity controller port 1 via splitter. controller is connect at 2 places to sata cable which is plugged into psu...

CPU:Ryzen 7 7700X CPU COOLER: Thermalright Peerless Assassin 120 SE CPU Air Cooler, Dual Tower 6 heat Pipe I noticed this weird sound coming from what seems like the cpu air cooler or at least in that area and it's not super loud but it's loud enough to be kind of noticeable. View...

Please recommend low-cost fans to me, especially if you have seen few (or no) data-driven reviews about them. Any size that is typical for PCs (120-200mm?). No server fans, and no known POS fans, please.