Hmm it's not that easy to find Maix Amigo, that Mouser link you have on your website is redirecting me to error page saying ''Sorry, we can’t find the page you’re looking for.''.
Than I tried to do manual search of term Maix Amigo and I found it but it has restricted availability, and due to government regulations they are unable to sell it to me.
Next thing I did is changing my IP address using several different locations in Europe and they all have exact same restricted availability message :/

I finally found them in stock on some websites but with higher price, but first store could be option for people who live in US.
Second store is located in EU and lost one is Chinese based Aliexpress:
https://www.electromaker.io/shop/product/sipeed-maix-amigo
https://www.antratek.com/sipeed-maix-amigo
https://www.aliexpress.com/