I would suggest either a 15" folding board, or a 21" vinyl rollup board, depending on your space and portability needs. There are MANY models of both types, but two semi-random examples are:

https://www.amazon.com/Amerous-Inches-Magnetic-Wooden-Chess/dp/B07N5ZS5QP

https://www.amazon.com/Quiver-Chess-Set-Combination-Federation/dp/B00PNV4P5W