Bulk Update Fields
Provides an action to bulk update field content.
The UI for editing takes a few clicks, would be great if it could be simplified.
Modules
Views Entity Form Field
Edit fields in views.
External Entities
Configure external API endpoints as Drupal entities. On entity save, fetch data from the api and cache results in the field.
Version 3 is in development, some modules are not compatible.
Field View Mode
Entity reference field formatter that allows selecting the view mode to display.