You can go to Geneanet, a major European family tree site and do a name search, (use various spellings?) which will bring up any families with those names and where they are located. You might even find your own direct ancestor that someone has in their family tree. All of the parish registers in the Bas-Rhin department (northern Alsace) are now digitized online at www.archives.bas-rhin.fr/registres-paroissiaux-et-documents-d-etat-civil/