Although this will not be a sideboard guide but more a how to play each matchup, I do have a short sideboard guide against most decks in Modern that you can find here
Legendary Creature - Human Wizard Sophia, Dogged Detective When Sophia enters, create Tiny, a legendary 2/2 green Dog Detective creature token with trample
Curse of Obsession While the enchanted player can draw three total cards on their draw step when enchanted with Curse of Obsession, having to discard their entire hand on their end step means they wont have access to those recently drawn resources for long
Printed design on case resembles a wooden chest with silver accents and logo DOTS RPG Project Braille RPG Dice by Die Hard Dice
They dont examine that these lists and shows exist in a space where time is limited, and resets are dead air
Lands and artifacts that can become artifact creatures arent included here