The San Francisco based children's brand Speesees is one of my favorites for their adorable organic clothing. I just bought Chloe this adorable lamb jacket ($36) which I've been eying way before she was born. These make great baby shower gifs! While I was pregnant I loved their maternity tops but they don't seem to have them for sale anymore.
Here are some picks from Speesees:
Ellie Applique Jumper ($28)
Prance Bodysuit ($16)
Tomato Bloomer (On sale for $16)