I have two different list. In the first list are some people picker columns. Is it possible to create a lookup column for list 2 to add the user from the first list? I know it isn't supported in Sharepoint, but i hope someone have an idea to solve my problem.
Directly the "People Picker" column will not be supported as a lookup in another list. For this scenario, you can create another column of "single line of text" type. Then by using a simple workflow you can update the newly created column with the value from "People Picker column" (Workflow should be triggered on new item added/modified).
Now you can refer the newly created column as a lookup column in any other list.