I used to think those quizzes were just entertainment, but some of them are actually surprisingly helpful if you treat them as inspiration rather than strict advice. When I was in the same situation, I ended up checking
https://glaminati.com/zodiac-sign-hair-color-match-quiz/ and it gave me a few ideas I hadn’t even considered before. It doesn’t decide everything for you, but it helps narrow things down and gives a starting point. Combined with your own preferences, it can make choosing a new look feel a lot less overwhelming.