How do I show a list of ~150 items when editing in a table? [closed]

I'm working with a table that allows inline editing. One of the fields allows the user to select from a list of items (up to ~150 items to choose from).

I've thought of a few ways to solve this, but I'm unsure as to which is best for this situation.

Here is the original layout:

Now the questions is in this situation, should I show the list of options in

• a sidebar
• a popover
• a dropdown

Below, I have sketched out each option.

Sidebar

The sidebar seems to be the most versatile, and did well with some initial user testing, so I'm leaning towards this option.

Popover

Dropdown