Moving to Miami area. Suggestions?

My husband was offered a position in Miami and we’re from Ontario, Canada. We have an 8 month old daughter and since we’ve been living in a big city for so long, we’re interested in something a little calmer when we move. Anyone know of any suggestions of areas near south Miami that are a little quieter/slow paced. My husband is okay with a commute around 30 mins if possible. I love the idea of paying a little less for rent than what downtown Miami costs too. Thanks in advance everyone!