Using the figure naming guideline, Amiibo should start the name... although it probably should be Nintendo Amiibo.
Those changes I made today are not even correct yet to begin with. The figure number needs to be in the title. I didn't notice the number until I got to the Mii. I also do not know whether the number matches to the mainline or to the subline imprint... in those cases, the search was showing me only ones under the Super Smash Bros. Collection imprint.
Now, if we had a category called Nintendo Amiibo, and these items were in that category, then we would not need to have Amiibo in the title at all. In an ideal situation, the figure itself would just be the name, and the figure record would be attached to all the different lines and sublines and item number. We aren't there yet!