Finding an oval sink that fits under my granite bathroom counter top

My oval white under counter bathroom sink is cracked and I am trying to find a replacement. The oval cutout in the granite top is 17 7/8" by 12 7/8" while the basin size of the current sink is 19" by 14". It’s hard to measure full length and width of the sink without taking it out. I have looked around online and I can’t seem to find anything that fits. But I guess I do not need the exact basin size and long as it’s not less that the cutout. Does anyone know about something that could fit and where I could get it?