Some of my favorite solutions
This Halfwall/build in cabinets. I’m not sure what to call it, but it sort of looks like a build in closet that was removed, to make an open shelving place. Or some sort of niche in the wall.
Shared and made by ahholladay.
Or this one, creating a media center with kitchen cabinets. It’s looks homey, and something people have in real life too. And last but not least, it’s very modular! Build it any way you want!
Shared and made by Mstybl195, the starter of the thread.
If you have any ideas of your own that you want to share, or are just looking for inspiration, I would highly recommend browsing there.