It's generally quite difficult to explain exhaust notes in text, and often even youtube videos can be quite misleading to what they actually sound like in person. If you're not in a rush then come along to a meet next time there's one locally to you and have a listen around to what set-up you think sounds best there may be one that you think "yeah that sounds absolutely bang on for what I want" and others that are too quiet or too loud or too raspy etc. But again, if possible, your best bet is to try and hear a couple of samples for yourself