Monopods are great for situations where a tripod is not practical or allowed. They’re fast, portable and these will provide you with additional feet to really get your camera steady. You can retract the feet when it’s not needed, and use these as your average monopods. If you’re shooting video, you will want a fluid head to pair with these monopods.
The Manfrotto 682B is a 3 Section self standing Monopod that can extend to a max height of 67″ inches and minimum folded length of 27″ inches.
Another option is this Oben ACM-2400L monopod which has better specs and also better in price (for a few days). The Oben is a 4 section self standing monopod that extends to a max height of 66″ and collapses smaller than Manfrotto to just 23″. The Oben is usually more expensive than the Manfrotto, but the ACM2400L is on sale for the next few days.