Dynamic Attached Views (DAV) allows users to choose which views will be rendered in a node page.

Only views with displays of type 'Dynamic Attach' can be selected to build a DAV widget.

You will probably want to use Node: Id arguments in all your views with 'Dynamic Attach' displays. This module will not automatically pass the node id to the view. Therefore you have to choose the option: 'If no argument is provided: Provide default argument: Node id from url'

Once you have at least one view with a display of type 'Dynamic Attach' you can create a views set. Each view set will be displayed as a select box in the node form.

For each view set, you can choose, in which content types will be displayed. The access settings determined in the original view also determine if an user can choose the view to render in the node.

Disabled view sets will hide the DAV widget but already selected views still will be rendered in nodes.