General Brazilian
molho, cacho, grupo, buquê
Most common usage; 'buquê' specifically for flowers
Rio de Janeiro
molho, turma, galera
'galera' is more colloquial for groups of people
São Paulo
molho, cacho, galera
Similar to Rio usage with regional colloquialisms
Portugal
molho, cacho, grupo, maço
'maço' commonly used for bundles like herbs or papers