Cole Hauser as Rip Wheeler wears Oliver Peoples Clifton glasses in the Paramount series Yellowstone.

The glasses can be spotted in many episodes from Season 1 through 5.

The Oliver Peoples Clifton glasses worn by Cole Hauser have a gold frame, with a unique bulge at the hinges, and smooth Oliver Peoples arm ends.

Currently, the same color is hard to find, but the model is offered at these websites:

Shop at Specs Collective ($506)
Free shipping - Prescription lenses available

Shop at Amazon ($320 - $506)
Shipped by Amazon - fast and easy returns

Also available in other colors on EZ Contacts ($446 - $506)
 

Similar sunglasses
Since the Oliver Peoples Clifton glasses are pricey, you could consider the Ray-Ban 3136 Caravan model, which has a similar square aviator shape. 

These Ray-Bans are seen in many films and series, including Top Gun Maverick, which made these one of the most popular on-screen frames.

Shop at Ray-Ban ($183)
Free shipping; add prescription lenses
Promo: 30% OFF SECOND PAIR

Shop at Amazon ($183)
Shipped by Amazon - fast and easy returns

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In the same series, Kevin Coster wears Oliver Peoples Oliver sunglasses.

The Clifton model is also worn by Pierce Brosnan in the movie Urge, by Jon Gries in The White Lotus and James Spader in The Blacklist.

Reference: Oliver Peoples Clifton OV1150S 503585 Gold, Light Brown Gradient Grey