I don’t think there will be any options for a baby so small… however I could be wrong. And if there is then I want to know too 😂 I’ve had 2 kids now, my 21 month old was 5lbs 15 in and my son is 4 weeks now and born at 5lbs 10oz, I’ve never been able to use anything but a wrap at this tiny weight!
Do you have a sling library near you? They are really helpful with finding a sling which is comfortable for everyone and you can test out a few different ones before buying one!