Thanks to DrummerIX for this spectacular cheat table for Octopath Traveler!

Some of the cheats it features out of the many are

Scripts for Infinite HP, SP, Max BP for All Battle Characters
Script for JP Multiplier/Infinite JP
Script for EXP Multiplier
Script for Setting Minimum Item Quantity
Script/Pointers for Inventory Editor (Allows Replacing An Item You Have With Another Item You Want)
Pointers to Leaf (Gold)
Pointers to first Inventory Item
Pointers to All Battle Characters HP, SP, BP
Pointers to All Characters Level, EXP and JP and Extra Stats

This for Steam version. Octopath Traveler was released on Jun 7, 2019 and the game description reads

Eight travelers. Eight adventures. Eight roles to play.

Embark on an epic journey across the vast and wondrous world of Orsterra and discover the captivating stories of each of the eight travelers.

The really cool part about Octopath Traveler is that the story unfolds slightly different depending on who you start the game with. So it encourages players to at least start the game over eight different times to really explore the true stories of each character.

You can download it from fearlessrevolution website