This post discusses what is a levain and how is it different from a starter, why to use one over the other, and the best way to use each.
How To Make Sourdough Bread (Beginner Friendly) - Bread By Elise
What is a Sourdough Levain? – Sourdough Brandon
The science of your sourdough starter - All you knead is bread
Natural Starter Bread Recipe
Sourdough Starter and Levain Recipe - Magnolia
How To Create and Maintain Small Batch Sourdough Starter
What's the Difference Between Starter and Levain?
Is There A Difference Between Levain And Sourdough Bread Starters?
Sourdough Starter Troubleshooting Guide and FAQ - A Beautiful Plate
How to Make Your Own Starter/Levain/Wild Yeast – The Bread Stone Ovens Company
Einkorn Sourdough Levain - Be Still Farms - Be Still Farms- Real, Fine Organics
Levain vs Starter - What's the Difference
What is a Levain And How is it Different From a Starter?