Some of the really expensive private schools do (Wheeler, Moses Brown, probably some of the boarding schools in south county). The thing is usually there is just one position to fill that opens rarely when someone retires.

You might want to start by seeing if you can post fliers at places that have cork boards offering tutoring services. I have seen students from Brown offer tutoring on these community boards.

I wouldn't discount opportunities in Boston either as there is a lot of money and funding there too. The good news is a public school is much more likely to emergency certify you if to fill a program spot because they aren't churning out ed majors in these languages.