1. Lots of pouches like these 7slings. Lots. These are a great option for tossing in the diaper bag or keeping the car for an emergency carrier. Some people also like them for an everyday carrier, but just remember that these are non-adjustable, sized carriers. You need to pick the right size for you, or it won't fit comfortably and support your baby safety.
2. Modified stretchy wrap type carriers like the Baby K'tan or the JJ Cole Agility Carrier. Like pouches these are sized carriers, and like stretchy wraps these carriers do better with babies under 18-20lbs. Many people have enjoyed these as first carriers - just made sure that sash is still with the carrier.
3. Stretchy wraps like the Moby and Boba wraps. A lot of babywearers love these for newborns or small infants and the sizing means that they work for pretty much everyone. Just remember that these are really only comfortable for babies smaller than 18-20lbs and only safe for front or hip carries.
3. Basic soft structured carriers like the original Baby Bjorn carriers. Sometimes you'll also find other brands like Chicco and Infantino. Remember that narrow based carriers are perfectly safe to use with babies without pre-existing hip issues, but often aren't as comfortable for the caregiver and can't be used as long as some other buckle carriers. Just try to find a carrier with a recognizable brand name to limit the possibility of buying a cheap or faked carrier that hasn't met safety testing standards. (Here's more on spotting a fake Ergo.)
4. Bag type slings of all varieties. Remember that the Infantino SlingRider has been recalled. You can buy and turn it in for a new infantino mei tai if you like, but otherwise we suggest notifying the staff it's been recalled so that another caregiver doesn't accidentally buy an unsafe carrier. Unfortunately there are other bag slings that haven't been recalled, but we still don't recommend these because of the difficulty in getting a safe, secure, comfortable carry. Likewise there are carriers like the Serena Lilly carrier that, while pretty, are difficult to use safely because it's basically a large pouch that's even less adjustable. Honestly, you're better off skipping anything of this description and putting your money towards something else.
5. Babywearing pay dirt! Occasionally you'll find a mei tai, ergonomic soft structured carrier, gauze wrap, or ring sling. Snatch that carrier up fast. This is why consignment sale shopping can be so much fun :)
Just remember - you're buying a USED baby carrier, and keep safety in mind. Check any or all stitching for wear. Look for known brands (or Google them before you buy). Make sure buckles and straps are all intact and in good shape. Be aware of any holes or tears that could compromise the carrier's integrity.
Natalie Short, VBE