A Go package with constants for the latest browser User-Agent and sec-ch-ua headers.

import "github.com/igolaizola/uaconst"

req.Header.Set("User-Agent", uaconst.DefaultUserAgent)
req.Header.Set("sec-ch-ua", uaconst.DefaultSecChUa)

Open https://httpbin.org/response-headers?Accept-CH=Sec-CH-UA-Full-Version-List%2CSec-CH-UA-Platform-Version in your browser and copy the sec-ch-ua headers and user-agent header to the uaconst package.