>>6269134There's no good place really, if you miss the pre-order window 4 months prior at international online retailers like AmiAmi, Hobby Search, etc.
Your next best bet is to buy from Japan-only dealers (which have shit loads of them) on AmazonJP, YahooJP, Rakuten through some proxy buying service. These proxy services have their own ups-and-downs like secondary fees, ability to combine your orders, processing time, order storage duration, etc. it's just another whole mess on its own.