Right on the edge of south arlington in baileys crossroads - Kareema Hazam. Extremely affordable and we love them. i don't think she's anticipating a spot open in May 2020 because some of the kids currently there are having siblings born this fall, so are taking the spots but it never hurts to check closer to the time because things do change. I'm not going to put her contact info here because it seems like those sometimes get deleted because they think it's the home daycare person themselves. Her name on the DSS site where you can look up inspections is Bishrul Hazam and you can find her info there. Also if you search her name on dcum a few of us parents have written about her recently because she has a spot currently. Anyway, if you ever were to reach out closer you can always ask to speak with a current parent and I've told Kareema I'd be happy to speak with prospective parents.
I also agree with talking to neighbors. Also search here:
http://dss.virginia.gov/facility/search/cc2.cgi and also Arlington has a map I think. I've also heard people really recommend infants and toddlers as a way to find a home daycare:
https://www.infanttoddler.com/