When you don’t have the width, HGTV recommends taking advantage of height. Instead of larger chairs with wide armrests, opt for a bar or bistro set. These have a narrower footprint and are a fun alternative to traditional table-and-chair sets.
Also, look to the typical indoor furniture such as hutches for height. Pictured here is a hand made (in the USA) solid pine corner hutch cabinet
that has the height but also fits into a corner to take up less space. It comes in several colors to match your other decor.