Are there any drop down widgets that have Radio Buttons?

Also, are there any drop down menu widgets that have Radio Buttons?

Hello again,

We do have Checkbox in Dropdown widget, which has an option to limit selection:

https://widgets.jotform.com/widget/checkbox_in_dropdown

Please try it out and let us know if you need any further assistance.

Thank you.

Is there any options with an Other option? This can work, but we'd just like to know if there is one that has it already built in.

Thank you.

This widget does not have such option, but I can suggest another one. 

Please take a look at User Contributed Dropdown widget, which allows respondents to add their custom options:

Related guide: How-to-Add-a-Widget-to-Your-Form

Hope this helps.