Loads of great movies
I find myself preferring to rewatch ones that are series to stretch out the experience. That way you can have a whole day or week of them lol
So like
Rocky
Rambo
American Ninja
Halloween
Friday the 13th
Aliens
Jaws
National Lampoons
Carry on movies
Bud Spender and Terrence Hill ones (they did loads together so that's the connection lol)
etc.. plenty of great movie series