The only one of those that I can vouch for is MGM, which has a pit that almost always has $5 6D games. Mirage is usually $10, and Monte Carlo is almost all 8D, also at $10. Remember, these things change frequently, and I don't play at some of those places often, so it's best to check. Bellagio rarely has $5 anything, and most of their BJ games seem to be CSMs. Regardless, all of those places are nearby, so my recommendation is to start at MGM and wander. You'll find what you're looking for on the south strip at MGM properties only, from my experience.
By the way, when the $5 games increase, it's typically to $10 and then $15. Even at busy times, most of those places will have at least a couple of $10 games.