Ring slings are easier to use.
Chose something baby can easily nap in, if you won't be bringing in a pack n play or anything.
Another good option is a mei tai like Babyhawk, Freehand, Kozy, Sachi, BBO. Those also distribute the weight really well. IMO they are easier to get on and off than a wrap but are harder to nurse in.
I wouldn't do a sling or pouch simply because you don't get both hands free, and it's harder to get office work done.
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