Ak 47 is an excellent choice... tastes sorta like cherry koolaid and packs a wallop!, Northern Lights is a great indica that is sweet and potent if couch lock is desired, and it finishes quickly. Apollo 11 is the easiest, most sativa like plant I have yet grown....peppy, up, happy, buzzing high, tropical fruit taste, lemony...can be too zingy for some of my friends, very potent. Can finish in 50 days....
Skunk #1 is, IMO, overlooked by many new growers, but should be seriously considered.....Skunk #1 takes a little longer, like AK-47 about 60 to 70 days, but skunk is cheaper and provides uniquely delicious buds, with good balanced high.
Good Luck