I tried ebay.fr or eBay in France and see two listings, one for I think peaches or stone fruit and one for jujube scions. I don't read French. There's also ebay.UK with more listings including, I think, the same "stone fruit listing" as above. It is awful late to be shopping for scions this time of year. After the holidays may be more successful.
Is it possible to ship from country to country within the EU during the Covid crisis? If not the market for any one country may be so small that it's not worth attempting to
sell?? I believe there are extreme restrictions made for those selling fruit and vegetable varieties that it makes it impossible for the small seller. I seem to remember that you have to be able to prove that the scion stick in your hand is actually an Xxxxx scion.