You can sart low budget and go with bags. Put a bag of bags near the intake. See and observe how air moves in your tent and put bags hanging accordingly. Near a fan is good too because CO2 is heavier than air, so fan blows it around.
If price is no issue, buy a combo meter that shows trmp, rh and co2 and a bottle fed supply system. CO2 really makes a difference, especially when it is hot.
In the lab, ganja grows best in heavy light, 30 centigrade plus and heavy CO2 feed.