Which amiibo unlock content?

I think I've seen somewhere that the Wedding Suit Mario amiibo unlocks Mario in a wedding dress.

Is this true? Do other amiibo unlock other outfits, or do anything besides giving hints?

Solution 1:

https://www.gamespot.com/gallery/super-mario-odyssey-amiibo-guide-what-each-figure-/2900-1565/

Also, this wiki has some additional info:

Scanning the Mario, Dr. Mario, Luigi, Wario, Waluigi, Diddy Kong, Gold Mario, Wedding Mario, Wedding Peach, and Wedding Bowser amiibo through Uncle amiibo unlock these characters' outfits for Mario to wear. Uncle amiibo also recognizes a wide variety of Nintendo character amiibo, such as Daisy, Rosalina, Yoshi, Link, Samus and Toad by their official names. While holding Right Button, scanning any Mario amiibo makes Mario temporarily invincible (as if he were under the effect of a Super Star), any Peach amiibo supplies a Life-Up Heart, and any Bowser amiibo (except Skylander Bowser) shows regional coin locations. Other amiibo give the player up to three coins or a Life Up Heart per scan, which can be done an unlimited number of times, reveal a Power Moon location, or unlock more costumes.