hopefully ur joking right? sativas take longer to finish (not so good for commercial) and typically yield less than indicas ..
sativa dominated hybrids 60/40 70/30 etc can make excellent yielding plants and finish in 7-9 weeks and will out yield most indicas
i would always go for something like this if i wanted high yield,
indicas maybe better suited for SOG when yield is the main concern although many indicas flower faster they often require a fair bit of veg time .. sativa hybrids do not need very much veg time, to produce a large yielding plant
check out some of these all high fast yielding sativa dominated strains
Island Sweet Skunk next generation
Top dollar secret valley seeds
Powerplant dutch passion
Skunk#1 Sensi Seeds
Cinderella 99/C99 moscaseeds
g13 x haze barneys farm
black/white widow mr nice seeds
there are 100s of commercial sativa strains i think having to chose indica for yield is a thing of the past
you could also goto seedfinder.eu and run a strain search there