Here is a link to a useful guide for that area. This particular link is for Batalha but you can navigate from there to the other towns. The good thing about this site is it’s honesty. It is very good about what to see and how long it will take. The convent at Tomar is also worth a visit, I forgot that from my initial list.
https://www.obidosportugalguide.com/...-portugal.html