There are like 3 different probably illegal (I feel very unable to care) websites that have all DOJG volumes integrated and can actually be searched, unlike a physical book. would recommend finding those unless you have a severe case of bibliophilia
dojg is definitely a decent reference work but doesn't do what tae kim does because tae kim is a guide
of course, when you actually get better at japanese you should just google your grammar point in Japanese instead
a good time for grammar "study" is when you need it to comprehend a sentence you are trying to read in native material. You can google and try to find out what the grammar means in this case through that. If you do this, you probably will not need isolated grammar study after an introduction, unless you want very high precision on usage nuance (for production), or are trying to pass N1 grammar questions (in which case you should probably get N1 cram books tho but whatever)
disclaimer: I am pretty intelligent and probably have a good memory. If you're less smart, things will work less well for you