I read a bunch of Robert Heinlein novels recently i really like the Puppet Masters, The Moon is a Harsh Mistress, The Cat Who Walks Through Walls.
Starship Troopers was ok and i quit The Number of the Beast half way through...couldn’t take it anymore.
I liked that novel a lot. Very interesting cast of characters.
I found some of Heinlein’s later works to be unreadable.