Bergstein rhymes with:
asselstine, bluestine, borenstein, brandenstein, brownstein, burnstein, cooperstein, duberstein, edelstein, feinstein, fleckenstein, frankenstein, gladstein, goldenstein, goldstein, goodstein, grabenstein, greenstein, hartenstein, hartstein, holstine, hornstein, liechtenstein, lowenstein, millstein, milstein, neustine, palestine, pearlstein, pearlstine, ramstein, reinstein, rheinstein, rootstein, rosenstein, rutstein, vanalstyne, wallenstein, wallerstein, weinstein, winterstein
Bergstein sounds like:
bergsten, berstein, bifurcation, boorstin, bragdon, braughton, braxton, breakdown, breighton, briggstone, brighten, brightman, brighton, brockton, brogden, brogdon, brookstone, broughton, broxton, burstein, burston