You may use the "Name Value List" or "Name Lookup Value List" field type. Probably this will serve your purpose of Name+Value for dropdown. To check more out-of-box field types, please see enter link description here. If out-of-box field types will not be used in your scenario you may add your own field types following this link enter link description here

You may use the "Name Value List" or "Name Lookup Value List" field type. Probably this will serve your purpose of Name+Value for dropdown. To check more out-of-box field types, please see Sitecore Field Types. If out-of-box field types will not be used in your scenario you may add your own field types following this link Create Sitecore Custom Field Type