Collocations for mayor - noun

local
deputy
lord (in the UK)
In 1662–3 he served as Lord Mayor of London.

Democratic, Republican, right-wing, socialist, etc.
current, incumbent (AmE)
former
big-city, small-town (both AmE)

run for
He is running for mayor of Bogotá.

elect (sb), elect sb as
serve as

mayor of
the mayor of Moscow