I really like the Scarey Pockets/ Pomplamousse ethos.
They had a video on YT a couple of weeks ago showing how they manage to arrange and record 4 or 5 songs a day as that's the only way they can do it commercially. They start with a basic chord chart, pull it to pieces, do a couple of takes and film the video. Obviously there is a lot of post production too. The other lot doing a similar thing are the Hindley Street Country Band down in Australia, their Bassist is a badass! They are a lot less slick than the SP as the keyboard guy does all the setting up and post production but the performances look pretty good too.
Just a side note, as well as Jack Conte being a millionaire, his wife Nataly runs the Pomplamousse band and without touring they are making $ that established mainstream bands would envy.
RE them being essentially covers bands, they all seem to throw in a few jazz chords just to keep things interesting....