You must have a pretty nice system to use 4 fans
You said your a noob, so I'll just say this in case you don't know:
Any motherboard you buy today will be able to control at least 2 fans on its own, the CPU fan, and case fan. It will also vary at least the CPU fan depending on the temperature.
And another option: If you have modern fans that are PWM'ed to speed up/ slow them down, you can use this:
View attachment 42378
Newegg.ca - Rosewill 12" PWM Splitter Model RCW-FPS-401
It takes the power of the PSU, and the PWM signal from the mobo to vary all of your fans.