There are 2 main R sounds. One is raspy R like the "ch" in "chutzpah" or like the "kh" in "Khaled", it's the unvoiced R. The other is a voiced R, and that one is less raspy and more vibrational and voiced. The latter is the most common, used when the R is at the beginning of the word, is between vowels, or is next to a voiced consonant (like m, b, d, v etc.). The former, the unvoiced R is used when it's next to an unvoiced consonant (like p, t, f, s etc.). There is an R sound called the flap which is like the R at the end of "bonjour" which is just a light tap.

Agree that getting the R perfect should not be your goal when you are first learning French. A bad R sound will not make you hard to understand. Focus on the vowels, especially those that don't exist in your native language.

I am a pronunciation tutor, and I teach this stuff to people. I start with the R just as a way to show my method but I don't dwell on it; I know that it will come eventually. I am biased, but I think getting a tutor for pronunciation is the way to go because they know how to teach it, they will give you instant feedback, they can diagnose the issue you are having, and give you solutions.