You can’t MAKE yourself seem more relevant. You have to just BE relevant.
No ‘slogan’ (like “Favorites of the Eighties, Nineties, and Today”) will do this.
And it’s not confined to radio. A TV station where I live uses “On Your Side” as their slogan. I wasn’t aware that I took any particular side, but after watching their hapless evening news team, I don’t WANT them on my side.
Kleenex. That name probably has relevance to you. Lysol = hugely relevant, especially as COVID-19 proved.
At some point, your NAME has to STAND for Relevance.
So remember that what happens when the mic opens – usually in the first 10 seconds or so – is what either keeps the listener here, or chases that listener away. Say something relevant.