Bertran rhymes with:
austron, beltran, buitron, catron, cintron, citron, coltrane, datron, doctrine, dyatron, dynalectron, intron, ketron, matron, patron, pentron, quotron, rostron, sumatran, vestron, wiltron
Bertran sounds like:
barthram, bartram, bertram, boardroom, brethren