1) Classified ad sites
The most popular sites for private sales, such as Marketplace or Leboncoin, can be full of pleasant surprises. Some ads are clear, with an explicit title to facilitate searches. Other sellers don't always list the names of the decoys, and it's only by scouring the ads that you can come across the rare pearl. This is also the case for lot sales, where it's often by consulting the ad that you can find what you're looking for.

2) Foreign sites
In some cases, it's not the lure that's no longer manufactured, but its distribution in France that's no longer assured. In this case, hopes are still good enough to continue to obtain the desired lure, the only constraint being to find a foreign seller capable of ensuring shipment to France. For this type of search, the Ebay.fr website is a good help, making it easy to find sellers who ship to France.

Alternatively, you can search for the lure's reference number in a search engine and look at the sites offering it for sale, hoping to find one capable of shipping it outside its territory.
3) Word of mouth
Talking to your friends or leaving a message on a social network can help you find the decoy you're looking for, if the information reaches the right person.
4) Stock up
When you realize that a lure will not be distributed the following year, it's time to get ahead of the game and build up a small stock. It's also the best time to buy a lure, as you may come across a clearance sale.

The longer you wait, the more complicated the lure may be to find, and some prized lures may even fetch prices that make them difficult to acquire on the secondary market.
5) Find equivalents
Finally, if all hope is lost, you can always search the current market for things that come close to what you're looking for.
This article deals with lures, but fishing tackle in general, such as specific flies or floats for jigging, can be found in this way. Larger items, such as rods or stations, are more complicated to ship and therefore less suitable for this type of search.