Any stretchy wrap IME - do the newborn hug hold. There are two ways of tying this, you do an X over front and back and then a horizontal band. But one way has the horizontal band first, and the other way has the X tucked in through the horizontal so the horizontal is sort of the outside layer. The latter (with X underneath) is my preference.
It can take a bit of practice to get it the right tightness. You want to make it snug (ish) rather than leaving space for the baby. The stretch in the fabric should allow it to make space. I did get more confident with my later babies.
I've had a few different stretchy wraps and I did really like the Boba one, it's nice and thick so gives more support than one with more lycra in it.
The Koala Cuddle Band looks a bit like the Close Baby Carrier (is it still called that? With the rings) and I think they are more difficult to use.
If you don't have a sling library nearby, see if you have an LLL branch, breastfeeding café, NCT bumps & babies/early days meet up or a breastfeeding peer support group. Those are the kinds of places you will find other mums who have used slings before and you don't need an expert, just someone who knows how it should look and feel.
You might also have luck at an independent baby goods shop if there's one near you or possibly even John Lewis?