Like people already said, use mandarake. They have an alarm function so you get notified when toys you’re looking for gets available. It may take a while but it will come in eventually. Sadly the toy part of this hobby is kinda infected, atleast the part of buying at release. I get the impression there are, besides some few lucky, a couple of greedy persons who buys up larger quantities and then scalps fellow hobbyist of cash. But, keep in mind it’s still not a cheap hobby but mandarake has quite fair prices