Hi @bdawidowski,
I don't know any, but here how I would have done:

First HTTP gets all columns set as required except "Title" one:
/_api/web/lists/getByTitle('Test')/fields?$filter=Required eq true and InternalName ne 'Title'
Use "Select" to extract InternalName only from outputs:
From: body('Get_required_fields')['d']['results']
Map: item()['InternalName']
Note: switch map to text mode
finally loop over each InternalName and give "Current Item" from Apply to each dynamic contents in second API call Uri.
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