Cabinet Type Thing

I have this desk and the bookcase dimensions in width and depth are exactly what I need. The problem is I need it between 26 and 30 in tall! I need it to match, but I'm not the best at this type of thing. It's a small room and when I bought my stupendous chase I underestimated how much room it would take up🤣 I had an executive office credenza and desk in there which had lots of storage. I can put most things in other rooms, but a place for some things is still needed. I don't want my printer and other objects on the desk, but since you will walk into the table or whatever I get I don't want it to be cluttered! Can someone please suggest something that matches! I'm going to try to post pictures of the space in the comments. This was at various points of rearranging and then the last one is the chair and desk. The desk looks closer to the chair because it was pushed out from the wall a little. I've rearranged various items in that room so at the time the pictures were to track progress or to think while. Or standing in there.