Meepin. Morpin, even.

Techno - At first they are just like. 100% sure he's an Orc. Techno doesn't really care at all what they think, but Philza gives off the vibes of "actually doesn't wanna get attacked on the surface" so he DEFINITELY tries to assure people "No he's just like- been cursed!!! To look all monstrous like this lol" (cus he's not sure how well they'll respond to shapeshifters, they might mistake Techno for a doppelgänger!) and Techno is like "What the fuck" for the most part but again. doesn't care enough. Philza - Genuinely they just thought he was an elf or half-elf for the longest period of time because he keeps his wings under his cape. Until he showed his wings and Laios freaked out thinking he was the first male harpy they'd ever recorded. Nope!! After that debacle they think of him like a Beastman like Izutsumi Tommy - Oni, probably an Ogre like Tade, though they are all quite curious on why his horns are "dyed" like that. Also why he's so small. Also why he's not from the east. Actually they don't fully think he's an Ogre at all it's just the first group they could put him with and they rolled with it Tubbo - I think they'd struggle the most with Tubbo. POSSIBLY?? They try to put him down as an Orc as well, but I think they'd just come to understand him like they do Philza, he's just a cursed Beastman. Ranboo - OKAY. So in the manga there's this character whos an elf called Flamela, and on the wiki at least (I can't be bothered to go through the manga for a proper refresher), it specifies that "her obsidian-like skin and silver hair are traits that are considered 'proof of true royalty.'." For this reason, I think it'd be fun if for the most part everybody, and ESPECIALLY the canaries, just think he's a really fucked-up royal Elf. Don't ask me how this makes sense it's just funny. Elves losing their mind over this "obviously lost member of our royalty" and he's just there