I painted ours with an oil based paint and then put epoxy over them. I have a tutorial here. :) https://letspaintfurniture.com/how-to-resurface-kitchen-countertops/ Hope this helps!
There are complete kitsch that provides everything you need
Rustoleum makes a kit that is supposed to be great.
Giani also makes a kit that gives them a granite look. Good luck!
Go to Home Depot or Lowe’s. They have amazing counter top kits for $200-300 that make it look like granite.
Thank you for the recommendations. I appreciate your responses!