Colston rhymes with:
gholston, golston, holston, olsten, polston, rolston, allston, alston, boyleston, boylston, carlston, charleston, coulston, egelston, eggleston, gholston, golston, goulston, halston, halston's, holston, huddleston, olsten, pellston, polston, ralston, raulston, rolston, roulston, walston, woolston
Colston sounds like:
celestin, celestina, celestine, celestino, chalcedony, classaction, claxton, clewiston, clogston, closedown, clugston, collection, collocation, coulston, cyclostome