Birkholz rhymes with:
buchholz, buckholz, eichholz, wachholz, buchholz, buckholz, eichholz, fernholz, loeffelholz, rebholz, reinholz, wachholz
Birkholz sounds like:
barcellos, barclay's, barclays, barclays', barclays's, barraclough, berkeley's, brazil's, brussels, bruxelles