We had a customer come in a couple of month ago looking for a DA 20.
I think I found one flight school in Sarasota which had ONE left.
A couple of years ago they where still plentiful, it seems most places have phased them out.
The DA 40 is more popular now, at least that one has a familiar engine, the IO 360 same as the C172SP.
The Rotax in the Da 20 was a bit of an odd ball.
Do a search on
www.airnav.com , you do not need to put in the airport identifier, the city is enough.
It will show the websites of flight schools at that airport.