Best Practices for Merging and Deduplicating Domain Lists in Clay

Hi everyone, I have two different lists containing domains that need deduplication. My goal is to merge them into a single list without any duplicates. One of the lists is already enriched in Clay but still requires filtering to remove duplicates. Does anyone have suggestions or best practices on how to efficiently merge and deduplicate these lists within Clay? Any scripts, tools, or workflows that you have found useful would be greatly appreciated. Thanks in advance for your help! Greetings from Switzerland.