In the US, Amazon is currently accepting preorders for Siege Voyagers Thundercracker and Springer, who comprise Voyager wave 3. And even more interestingly, Amazon is currently claiming an in stock date of February 16th for both toys! We have our doubts about that, though it's interesting nonetheless. But whatever date they'll be released, there's a slight catch: Their product pages aren't accessible right now. So how can Amazon accept preorders? Through wishlists! Users that have these figures saved to a wishlist will find them available to order. And the good news is, it's possible to add both toys to a wishlist even without being able to visit their individual pages.
Follow the links below, which will take you to an Amazon page asking you to confirm your action. It will show the item name as "Currently unavailable", but that's fine. Click continue, and it will tell you that the selected item has been added to your wishlist - whichever one is set as the default list in your account. Then just visit your default wishlist and you should find the Voyagers right at the top, where, as long as they have some preorder allocations remaining, you'll be able to add them to cart and go check out.
Now, some caveats: In the event their implausible shipping date turns out not to come true, these toys being for wave 3 are a little ways down the line, release-wise. Amazon won't let orders sit open indefinitely, so if it takes too long they may eventually cancel the orders. Naturally you won't be charged until or unless the orders are fulfilled, so there's no risk even in the case that cancellations do occur. Also, as of the time of writing this article, all information presented is correct, but inventory, or anticipated inventory levels can fluctuate with little or no notice, thus we do not guarantee how far going forward these toys will be orderable using these means. So get on it while the getting is good!