I've read all of of those except for the Space Beagle one.
Sigh,, I'm getting old and my relatives want me to sell off my early sf paperbacks. I told them they could do that later on. I want to re-read them.
Stories about Grimes are very good. A. E. Van Vogt's stories will certainly stretch your mind.
Andre Norton and Robert Heinlein were some of my early reading material.
If you can find 'em, the short stories of Eric Frank Russell are great stuff. Some of it seems to have been an influence on Traveller.
http://www.goodreads.com/book/show/1414641.The_Best_of_Eric_Frank_Russell
and I can't say enough how thoughtfully enjoyable James Blish's Cities in Flight series (these days always combined into one big book) is.