First, welcome to the talk. Have you done any cheese making yet, or is this your first try coming up?
You can do temps on the stove - but that’s a tough one. It’s harder, in my opinion, to heat your milk slowly enough on the stove. Lots of people do it, so it’s not impossible. Also, maintaining the temps on the stove requires pretty close monitoring.
You can use a double boiler type arrangement on the stove, which makes it easier to maintain consistent temps. Personally, I don’t have a pot big enough to contain my 5 gallon cheese pot.
The sink has been my best option. It’s easy to add more hot or cold water when you need, and the mass of water around your pot keeps temps fairly stable. You will need two thermometers - one for the milk and one for the water - so that you don’t have to keep sanitizing the temp probe each time you return it to the milk.
Wishing you well in your attempts. Keep us posted on how it goes, and ask questions whenever they come up. We’re always glad to help.