Possible, with some qualifiers: Emperor Level, New World, Wet Rainfall, Huge, Contenants. Using Cyrus. Pretty much of a sure thing at this level. The Age & rainfall ups the chance of favorable terrain for production. At Emperor (I doubt this will work on Dety or Immortal), I can usually get "Harvest Goddess", or, failing that, "God of the Sea", if I push hard for religion at the start. (The religion allows maximizing the golden age bonus that allows you to buy builders, settlers, and trade w/faith... I usually grab the "Tithe " & a "Shrines & Temples give Food (or culture)). Thien I grab a religious bldg. tenet, and either cheap missionaries or greater religious pressure...I want the bonus for finishing religion. Chopping the extra terrain generates a hell of a lot of faith; the alternative is to spam harbors, and use the extra production and triade. I also build lots of the Paradiza (sp?) improvements, and do all I can to generate as much trade as possible.
I build scouts, and warriors/slingers (for the eureka when slingers upgrade), but do the bulk of conquest with Immortals, and chariots, which are upgraded to Knights asap. The conquest/exploration starts on turn 1, and never lets up. Oddly enough a delicate balancing of short wars & trading/missions with anyone who will talk with me helps to keep things semi-quiet up until about turn 150...only about 50% of the countries hate me). Governments tend to favor Oligarchy and Merchant Republic. By the time you get to tier 3 government, you should be sitting pretty; probably Mussolini could win now, if you have made it this far.
The loyalty mechanic puts a crimp in domination, but by keeping cities in range (and coastal cities do quite nicely for loyalty....do't quite get why, but the have a better range for loyalty, it appears. The surprise war is a big help...usually by turn 10 I can negotiate peace, and get ready for the next victim.
It requires endless aggression, and the willingness to ignore warmonger status (everyone winds up hating me in the end), AND, I have to (frequently) pump up city population (trade, draining the swamp or chopping rainforest) to keep loyalty pressure up.
I can grab a domination win most of the time. I have to really work at getting golden ages, & not miss possible Eureka, Inspiration, or Age Boosts. It requires very close attention to detail. Sometimes I change production (tiles worked) in a city, on a per-turn basis, and I do not get a cultural or scientific advancement if I don't have the boost. Eternal (world-wide) Goodie hut hunts are mandatory, as well as barbarian wars...I love those barbs! It requires a hell of a lot more micromanagement than I am used to...I sometimes avoid getting an achievement if I already have enough for a golden age, and use it for the coming era.
This works great a King, and I was able to move it to Emperor with little difficulty. Although I have almost 2500 hours on Civ 6, very little of it is R&F (maybe 100), so I have not tried any Immortal or Diety runs. I suspect that would short-circut the benefit I get from early religion, as well as making it harder to stay alive as such a predatory neighbor. This also works with Rome, Germany, Cree, and Australia, as well as Rusia & Suneria. Please let me know what you think.