Baratza
You can find the grind setting that Baratza recommends for your brew method and grinder here. However, each grinder and each coffee behaves a bit differently; we suggest taking Baratza’s recommendation as a starting point and then dialing in the grind size according to your taste.
You can find some resources for grinding and dialing in coffee at the Baratza link above, and our "Pro-Tips: How to Dial In the Grind" article offers great information as well.
Fellow Ode
Each person's grinder and each coffee behaves a touch differently, so we always suggest taking recommendations as a starting point towards dialing in the grind size according to your taste.
The hopper top on the Ode has grind setting specifications. However we've been obtaining good results using a grind size of 3 for smaller doses (between 22-24 grams of coffee) and a grind size of 4 for larger doses (28-30 grams of coffee) as starting points.