add_content_by_bundle
This module improves on core's "Empty Node Frontpage behavior" area plugin (used in headers and footers) when used on views that show a restrictive set of content types (e.g. one or two) by allowing a site builder to add links that point directly to one or more forms to add content, of a specific content type. You can also specify a class, for example to format as a button.
The intent is to make overall site maintenance easier by providing relevant and intuitive editorial links in context.
Currently this module only works for nodes, but could support other entity types. Please file an issue if there is something specific you need.
This module also has integration with Form Mode Control, so links can point to a specific form mode. Also, a site builder can choose to point the links to a dedicated page (default), or open the form in the settings tray or a modal dialog.
Similar Modules
This module is designed to be simple and lightweight, but if you need something more robust consider Views Add Button.