A preliminary list for Pokémon viable - Smogon University

AAA - Almost Any Ability - Survey at post #1093!

Zacian, Zamazenta, Koraidon and Miraidon have all had their signature abilities removed and replaced with abilities that already exist. How much better/worse do they get? : r/stunfisk

How To Use Koraidon In Pokémon Scarlet And Pokémon Violet

Gen 9 Smogon

The Pokémon Tier List Fans Are Waiting On For Scarlet & Violet

Koraidon is Super Scary! (Pokemon Showdown Random Battles) (High Ladder)

Pokemon Scarlet & Violet: Miraidon Combat & Build Guide

Smogon University - Even when it's no longer gliding on the green grass, Rillaboom still settled quite nicely in its new habitat! Explore more Pokemon Showdown usage stats here

Metagame - Force of the Fallen

New Smogon Tiering Radar : r/stunfisk