Does it make sense to combine radio buttons for common options with a drop down menu for less common options?
Like so:
The advantage being that most users will be able to choose one common options without searching through the dropdown, but the outlier user will still be able to find their choice in the dropdown.
Nick Babich mentions using autocomplete in a text input field as an alternative. I think I like that approach more. It seems faster for users. And it preserves more screen space. The downside to it is that it may be difficult to achieve from a technical perspective.