I'm old-school. I've been using Mother's California Gold pure Carnauba for...... 25 years I think?
Not that "with cleaner" crap they well in Walmart. the PURE Carnauba stuff.
It's not easy to apply, or quick.... It takes forever.
But the shine.... the thickness.. the depth.... is better than anything else I've ever tried.
There's probably something newr/better that I don't know about.... but this stuff has never disappointed me, so I stick with what I know.
https://www.amazon.com/Mothers-05550...%2C229&sr=8-10