Although a devoted sit-stand desk is often the best option if You are looking at alternating between sitting and standing, you can find desk converters that make it possible for you to rework your fastened-height desk into an adjustable, ergonomic sit-stand desk. I've overlooked Mounted Height Standing Desks for this https://the-standing-desk53062.blogdigy.com/low-standing-desk-things-to-know-before-you-buy-57062415