go with any seeds that are either on the home or favorites page of your favorite online seed shop.

for sativa, i have a friend growing sacra fresca feminized, and its an impressive plant.

other than that, northern lights is a good strong plant from what ive heard about it.

do some research. some plants are huge, some small, some bushy, some a single stem, sativa vs indica, etc

theyre all out there. its all your preference