If you gently lift the lower branches of your marjoram, thyme and sage plants, you'll see where branches that have touched the ground have developed roots. This is called "layering" and can be done intentionally by the gardener, or by chance by Mother Nature! These plants can be cut from the mother plant, potted, let rest in semi-shade for a week or so, and then given away.
If you want to keep the current herbs from spreading, a barrier about 6" underground and the same above will contain the herbs you mentioned. NOTHING contains mint, not even Alcatraz! I'd use something more permanent than a wood barrier, which might also attract certain insects. We used a plastic edging material, flexible and relatively cheap, with a stone wall to disguise the above ground part.
If there is a Master Gardener unit near you (check with your county's Agricultural Extension Agent) they might want to send a few members over for a "dig and carry". Also, a local herb society might be interested in receiving donations of herbs, either rooted or cut. A local newspaper should know of garden clubs, herb clubs and have a way to contact someone in the clubs.
How nice you haven't just cut and tossed all those lovely herbs!

And after you've exhausted your 'give-away' leads, please don't think that digging them up and making compost as a waste! That would be a good way of recycling them into something very useful. Just don't be held hostage by plants that you didn't choose!

But I'll bet that with a few well-chosen phone calls you'll find all sorts of takers!

Are there any restaurants in your area that might be interested in your herbs? You might even find a new source of income!

Harvest, dry, and package for wonderful "from the garden" gifts.

FataMorgana