If you harvest early you will have less thc (the oils you are wanting for edibles) so let it fully mature and the last week of flower put it in pitch darkness.then you will have the most resin you can get.you will have alot less effective product if you harvest early.any weed makes good edibles but sweeter varieties will taste better so stay away from sours and diesels and such.I imagine cotton candy and shishkaberry would make good edibles.
I am also looking for something that is newbie friendly. Are those you mention easy to grow?