Im finding reading is helping with vocab as well. I am much more likely to remember a word after reading it and looking it up a few times than drilling it over and over with a vocab flash card deck. It stands to reason grammar is the same- and I have picked up some grammar reading along with the Absolute Beginner Bookclub. Otherwise my approach has been to watch a Cure Dolly video then plug whatever new grammar I learned into Bunpro.
Ive tried to start Genki several times and it didnt stick. But different things work for different people.