Sooo, canon Tommyinnit wake up one day and find out he have been trasport into an alternative dimension.While find a way back he meet upon a buch of villain, hero, vigilante verson of many person he know of (check ao3 canon!Tommyinnit in vigilante au for more information)

Some headcannon for this:

-Tommy work at a tailor he own (or nikki cafe), and really good at it

-Make Tubbo and Ranboo his coworker or something

-He meet hero, villain, villgilante in civillain form while working

-His "minecrafty" still existed but resign at power

-Meet Willbur (or Dream) in hero or villain when seriously injure

-Dump on his apartment or clash it, anything is fine

-If Dream then he will have panic attack, Dream will be the one calm him down

-Healing them by solving gapple or potion at them

-When they wake up ,the will hostile at fist but calm down once they realize he saved them

-And that begin of his involved on them

-suprised adoption later

-One times he go to the nether and everyone concern for him, so they go with him to

-No one can explained his power

-He may build a tower or... something ;)

-conflict about return home or stay here.