Bi-annual Reminders

You can create a site workflow , use query list to get the item based on the status. Create the email content looping through the item, if you want to specify the item in the email.

Schedule the workflow to run based on your requirement.

cvuppala‌ - 

Sojan Mathew‌ summed it up nicely. Here is a bit more detail in case you need some help. Depending on how you want to send the email will determine where you add the email notification action. If you want to send one email from the workflow, put it outside of the loop. If you want to send multiple (maybe you want to send to different users but only the items tha are specific to them), you will need to add it within your loop and loop through the different users too.

Here is the high level view:

• Create a site workflow
• Add query action
  • Query your target list for all the items with [Status] = "Open"
  • Add them to a collection variable
• Add for loop action
  • Loop through your collection to get the details you want/need
  • Add details to a Build string action

• Add Email notification action
  • Add your details to the body of the email to be sent

Last step to do is schedule the workflow to kickoff. So something like this:

Hope this helps!