yeah, go natural man, autoflower and feminized are the downfall of potent genetics, both of which can hermie and ruin all your crop.
id say nirvana or the attitude(theyve got more variety), maybe dr greenthumb(its still legit i think, i haven't heard of people having problems), get some aurora indica and some ak48, im growing it now and im wishing i was using these strains. its almost impossible to make mistakes on them, and they adjust to their environment easily.
you only need to buy 10 of each probably, 5 girls out of each of those ten(most likely, you could get 7 females in one pack if your lucky or sometimes youll only get 4 females). just get a camera and us people on riu can help you grow them.