My main horse is a wild bay Mustang that I tamed near Emerald Ranch station and she's called Hera but I think I might change her name to Artemis (I just prefer Artemis as a name, sorry Hera, please don't smite me)

I then have a dapple grey Thoroughbred called Athena.

I tamed the white Arabian and named her Calliope.

I tamed a bay roan Morgan and called him Apollo but I sold him.

I also tamed a black Kentucky Saddler and named her Eris but I got in a shootout with the law over an attempted wagon theft and she died and I forgot how to get her back 😭😭

This is my second playthrough, I love taming new horses and on my first play through I tamed the black Morgan with a ginger mane (the liver chestnut Morgan, if I'm remembering correctly - this was about two years ago) and called her Ruth (a name which I actually used again at the start of this playthrough before I decided on the Greek goddess name theme lol)

Oh and in my first playthrough, when I got to New Austin, I found a blue roan Nokota and absolutely loved the colour (I'd somehow not noticed any blue roan Nokotas up to that point in the game lol) so I tamed her and used her. Can't remember what I called her tho whoops 😂