Polish seems to mean different things these days. I use Zaino polishes, but they have no abrasives, and are really wax/sealant alternatives. I like the Menzerna Final Polish 2, but it doesn't even look like it's sold anymore. One bottle has lasted me 14 years. Even the Zaino formulation guru (Sal) likes it. My slightly more aggressive polish is Meguiar's, and that bottle is nearly a decade old. The Zaino tire dressing is great, and isn't shiny or greasy. It's slightly pricey. The Zaino leather cleaner and conditioner (separate products) are outstanding. I use them on my motorcycle jackets/suits and car interiors. The Meguiar's Gold Class leather stuff is mediocre by comparison, but it's very reasonably priced. It's my basic leather go-to, but is a little oily/greasy. I also find all of the Zaino products smell good. I agree you don't have to spend a bundle to get a good product.I got really into detailing a few years ago and bought into all the marketing around Adams Polishes, Sonax, etc.... Now a few years later and lots of elbow grease, I've learned most of these products are all the same chemical with a different color and/or scent.
I just use Meguiar's professional products now at like 1/2 the cost of the others mentioned. No complaints.
The only exception is tire dressing.. I haven't found a replacement for Adams VRT. I'm not into shinny plastic-looking tires. VRT cleans and protects leaving a really nice matte finish.
+1 this is the best combo. However, it has a shelf life - mine went bad after maybe 4 years. Considering the cost, the product may be better suited for a detailer who goes through a lot of it each year.I've tried it ALL.
Nothing comes close to this: https://smile.amazon.com/gp/product/B0082LK8K6/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1