We used this for our newborn and it was great.
Lifft Slings Stretchy Wrap Sling Baby Carrier
Lift Stretch Wrap Sling Baby Carrier - Short - Teal Blue
Boba Baby Sling Wrap Newborn - Original Baby Sling Carrier for Newborns and Infants up to 35lbs - Hands-Free Baby Wrap Carrier - Stretchy Baby Wrap Sling & Newborn Sling (Vintage Blue)