The tile is DY01 Stream

I would do a quartz or solid surface counter with not a lot of movement (which is why granite would be out) that matches the darkest color in the tile. Since the tile is busy I don't think granite would look right with it's busyness - it will compete with the floor. The darker color counter will contrast with the cabinets and tie into the floor.

I would put in a solid white countertop to match the cabinetry. I think you have enough lovely drama with your shower and floor tiling. A few years ago, we renovated all our bathrooms. I chose Thassos Pental White Quartz for my laundry / bathroom’s gray vanity. We purchased this remnant quartz from a local stone quarry. It does not chip, scratch or stain. Cleans up easy with dishsoap and water. Best of luck on your journey!

I’d also recommend something without movement. Many here really love Corian solid surface. Since whites can be hard to match and you have white cabinets, you might want to look at something like Corian Pearl Gray. Bring a cabinet door and a tile with you and view options next to them, and then get samples to view in your bathroom.