As cardern said, the list will do the job.
Here's how you can use a named range.
Select a range and enter a new name:

Select the cell for which you want it to be enabled, and go to the data tab β data validation.
Select List from the Allow drop-down menu.
Enter your named range as follows:

You now have a drop-down list associated with your range. If you insert new lines in your range, everything will be updated automatically.

Portland runner
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