This will probably be my first ever fanpet, but I'm such a huge fan of the character Overhaul.

So first off, do you have any tips regarding fanpets in general?

Secondly, what pet/color do you think would suit him best? I'd usually say steamwork maybe, considering how his quirk allows him to remake and reshape things by taking them apart?

Thirdly, please help me with TC suggestions ?

Oh, congratulations for the name! I like Overhaul too :)

For specie and color I suggest an Steamwork Fester. Because of Overhaul's mask. I think it fits him well.

And for his TC I find these items:

or (I can't find a better black shirt) or or for his jacket's fur (I'm noy sure if it's purple or black so I put both options) (I don't know about his shoes o.o but whatever xD) and