I can heartily recomend the TB teenyfit - great at containing newborn poo, and such delicious patterns. I would suggest a TB stretchie as well, they are bamboo so slim but absorbant, and are birth to potty so nice and cost effective.
I find the Itti bittis very hard (the absorbant fabric doesn't cushion like the little lambs and teenyfit/easyfits do. Would suggest either of those or a WN AI2.
I find WN wraps very big under newborn clothes, as well, so maybe look at some motherease or TB.
If you're getting a diverse stash, I would buy pre-loved or try a nappy-lending site so you don;t spend lots of cash buying things that don't suit you.
Good luck and have fun - nappy shopping is amazing!
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