Charizard Amiibo - 4" x 3.5"x 3", and it should fit in this softball display case that is 4.2" cubed.

Softball Display Case
https://www.michaels.com/softball-dis...

Hori Amiibo Display Case
https://amzn.to/3jLMsVL

Amiibo Protector
https://amzn.to/3oKccWk