Where should I live in Brooklyn?

My partner and I are moving to NYC in July (approximately) and are planning on Brooklyn. She used to live in Washington Heights and I’ve never lived in New York, so we’re not really sure where to live.

We want somewhere where two women will feel safe coming home at night, but we can’t afford more than around $1400 a month in rent. Most of the info I’m finding online is out of date, and from what I understand, New York neighborhoods have a way of changing fast. We’ll also both be commuting to Midtown every day, so more than a 30 minute train ride would be a bit much.

Suggestions?