I have a Galaxy Tab A with S Pen, model P580NZKAXAR. I got it from Amazon in the USA. I'm not sure the one you linked to is the exact same model. Did it come with the S Pen? They make a model with the S Pen and one without.
Anyway I bought this stylus to use with mine:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
It works every bit as well as the stylus that came with it but it's larger and easier to hold.
If yours didn't come with the S Pen you won't be able to use a digital stylus. You'll need a capacative stylus. Those are much cheaper but they don't work nearly as well. Any capacative stylus should work.
Barry