When we think of a "humble follower," words like submissive and meek may come to mind. However, there are many synonyms that can describe a person who follows with humility.
One word could be a modest disciple, someone who seeks guidance while remaining humble and respectful. Another synonym could be a compliant adherent, an individual who follows willingly and obediently but doesn't boast about it. A self-effacing devotee is someone who is shy about their devotion but still follows wholeheartedly. And finally, a respectful acolyte could be a good synonym for humble follower, as an acolyte is someone who serves under a mentor or a religious leader with deference and respect.