If I had to pick one and only one carrier, I would, 110%, get the Boba Wrap. I seriously cannot recommend it enough. It is a long stretch of fabric to be tied around you and baby to hold your little one close.
I took my kids everywhere using our Boba. They were along for the ride all the time and it was easy for them to fall asleep when they needed to. For this fast paced mom who is looking to do it all, this was the perfect accessory.
It did take some time for me to master how to tie it. Definitely two sets of hands for us in the beginning, though now I’m a regular and it’s easy. There are two ways to tie it as well: the newborn, for your little ones that don’t have head control yet, and another one for your older kids. There are also a lot of tutorials (not approved by the Boba company) on how to wrap them in different ways as well, including your hip, back, and outward facing. It fits kids up to 35 pounds, so plenty of room for growing.