I am creating a workflow to copy a list time to another sub site however I am missing the option to "create item in another site"
For sure, "Create Item in another site" is a available in standard version of Nintex workflows.
Just make sure this actions is selected in allowed workflow actions.
Go to SP Central Admin --> Nintex Workflow Management --> Manage allowed actions --> check if "Create item in another site" actions is selected as shown below.
Below is my nintex version and license information
Nintex Workflow 2013
this action is included with standard I believe.
please ask your farm admins to check the action is permissioned to you.
Retrieving data ...