A few shots of what I have at home
Off camera is a prowler, some farmer's handles, another keg, a sandbag, and then a whole bunch of wearables (dip belt, belt squat belt, power belt, pulling harness, neck harness, front squat harness, etc).
I've definitely gone extreme, but aside from the basics (good barbell, plates, rack) here are some other things to heavily consider for a home gym.
-Safety squat bar
And then, if you want to specialize any more, there is tons to play with.