Poland
Polish Map showing alll places in modern Poland. If there are more than one with the same name, this will be shown. The site will give you the name of the current province and the name of the Gemeinde and zip code. You can also click on place and see how far away another place is: https://mapa.szukacz.pl/mapnik.html or type pilot.pl
Germany
Meyers Orts: https://www.meyersgaz.org/ [1871-1918]
https://de.wikipedia.org/wiki/Liste_von_Kartenwerken
http://www.vffow.de/Westpreussen/WP-Kreiseinteilung.htm#Landkreiseinteilung West Prussia [1921-1945]
Jewish Gen Maps of Poland : https://www.jewishgen.org/InfoFiles/Poland/Q2.htm