I think I understand what you are looking for, and if so this may work. After your Get items action, initialize an array variable to capture the e-mail address of the owner. Then use an Apply to each to append the e-mail address to the array. This will probably result in duplicates, but that is okay at this point.
After the Apply to each action Initialize another array variable and use the union expression to get just the unique e-mail addresses. Expression: union(variables('Submitters'),variables('Submitters'))
Next, add another Apply to each action with the output of the Above variable (Emails). In the apply to each add a Compose action that contains the current item as the input. Next add a Get items action and filter the e-mail address of your owner with the output of the Compose action. I then add another Compose action to get the length of the Get items action to make sure it found items. Then I use a condition if the count is greater than 0 continue.
In the condition, use a Select action to get the fields you want to send in the e-mail, followed by a Create HTML table from the Select action. You can then insert the HTML table into your e-mail.
The end result is:
Hopefully this makes sense... 🙂
