I would convert your JSON data to XML then use XPath to get the list of values from your choice field.
For this example, I'm using the following list and will extract out the Title (renamed as Team Name) and Countries (multi-select choice field).
Get items returns the items from my list.
XML is a Compose that converts our data to XML so we can use XPath expressions. Note that it also adds a root element to the data to ensure it's valid XML. The expression used is:
xml(json(concat('{"root": ', outputs('Get_items')?['body'], '}')))
Select uses the output from XML and a couple of XPath expressions to get the Team Name (Title field) and the list of Countries.
The input (From) uses the following expression which will give us the list of list items.
xpath(outputs('XML'), '//root/value')
The expression to get the Team Name (Title field) is:
xpath(item(), 'string(//Title/text())')
The expression to get the list of Countries, joined by a comma is:
join(xpath(item(), '//Countries/Value/text()'), ', ')
The Select looks like that below, with the above expressions.
This will give us output we can use in a Create CSV table, Create HTML table, attach to an email, or save to SharePoint, etc.
In this example, I'm using the output to create a CSV table.
And attaching the CSV table to an email.
And the CSV table data:
