Heres what I have, now I need your help to decide setting it up. SCROG?

Ok, heres the rundown:

3.5x3.5 closet with mylar
600 watt mh/hps w/ cooltube
6" inline fan 435 cfm for exhaust
Carbon can filter for smell
DWC rubbermaid tubs/buckets
Possibly doing a SCROG for space limitations

Want a strain thats good for DWC and SCROG. Northern Lights? Nutes?

4 plants for shorter veg time.

Any ideas/suggestions to better this setup/increase yield?