What is your objective?
The motherboard specs say you have 1 cpu fan header, and one system fan header:
https://www.gigabyte.com/Motherboard/B450M-DS3H-V2-rev-10/sp#sp
What processor will you use?
It is probably best to use the cpu fan header by itself to control processor cooling.
For case fans, you can probably use a splitter to connect up to three normal fans to the motherboard.
All will be controlled identically.
You can add as many fans as you want via molex connectors from the psu, but they will run at full speeds.
If you are intent on a RGB light show, you can always add a fan controller that is powered by direct connection to the psu.
If the objective is to use many fans for cooling, that is another matter.
How you accomplish that will be determined by the cpu cooler you install.
The case is a decent one for air cooling.