Karsten rhymes with:
carsten, carsten, garstin, garston, harston, marston, carsten, garstin, garston, hairston, harston, marston, norstan, thorsten, torsten
Karsten sounds like:
kerstein, kersten, kirstein, kirsten, kirstin, krigsten, kristen, kristin, kristina, kristine, kruchten, kyrgyzstan