In the relationship between table and chairs, all elements must effectively express design and functionality, without one factor going to the detriment of the other.
Tables have an aesthetic value linked to the design of the legs and the used materials but functionality must be the basis of the choice.
First you need to understand which shape and which measures are best suited to the space and then move on to the important choice of chairs.
Beyond the aesthetic compatibility between table and chairs, for the seat to be comfortable there must be a precise proportion between the two furnishings.