Variant spellings on the suggestion on an English name ,not Chinese name at work is needed;eg:-Bill Shum=Kelvin Shum=sound the louder. And the forms are given only on Letters B and K on Common first male names:-
Asron, Allan, Austin, Benjamin,
Billy, (William), Brian, Cameron, Charles, Darren,
Keith, Kenneth, Kevin, Kieran,
Lawrence, Logan, Michael, Norman, Randolph, Russell, Victor, Vincent.
Would recommend the above 22 names;
Simply pick one sounds best to you.