What is your budget?
$10 ish then get GeLID Silent 12s. If you can get the SP120 (Static Pressure) or the AF10 (Air Flow) for $15 then it's a steal, kind of. $20 to $25 you can get yourself a Noctua or Be Quiet!
I'm gonna fill every single place where i can put a fan for maximum cooling (I've had some nasty experiences due to bad cooling), that means i'm buying 7 fans (H80i will use one spot). I guess something between 10$~15$ per fan would be ok.
Amazon has the SP120 and the AF120 on 14.99 or 27.99 for two of them.
But would the SP perform better over the AF for pushing air outside the case through the mesh?