Have you tried holding the cuttings in water for the winter?

There are no Copper/Salmon coleus from seed - like you have discovered, they are all propagated vegetatively. Your best bet would be to visit an independent garden center, and ask if they can bring in a larger quantity, grown in a smaller container, just for you. A tray of liners would be your best bet

Wait.....I think I saw some options when I was looking around early this morning, but I still haven't figured out how to attach links with my Kindle Fire (which I am using now) .

I'll post later tonight.

OK, Kimka....here's the seed company I saw earlier. There might be something in their large collection of seed propagated Coleus that might please you. At least, it gives you an idea of what might be available.

I surely do see some that I don't think that I can live without.

Here is a link that might be useful: Lots of Coleus from seed

Wow, that's an impressive assortment of coleus from seed! Thanks for posting that, Rhizo!

Here's a link to a place that sells plants, several thousand it looks like. They have several pages of them, take your time.

Here is a link that might be useful: rareplants coleus

Coleus seed selections have improved in recent years (there's a lot more to choose from than just mixes like the "Fairway" series), and this is probably a reasonable option for those wanting shade plants.

Still, for the most attractive and best performing coleus (including those that work in full sun too), cuttings are the way to go. Not all coleus seem equally vigorous on windowsills or under lights over the winter, but many are easy to propagate, like this red I mass-produced plants from this past winter:

{{gwi:20465}}

That's a drop-dead gorgeous red!

Eric, could you tell us how you did this? My cuttings in water usually rot after a while.

If a dead leaf falls in the water, it can make things icky. Do you think that's what happened? They also need a lot of light.

Rosy Dawn Gardens has the most coleus for sale that I have seen. I have ordered from them and have been pleased.