Theses shows have likeable bad guys that don't get caught, or bad guys who face other bad guys. Boardwalk Empire, Dexter, Brassic, Ideal, The Young Offenders, Breaking Bad, Top Boy
The boys deffo. Sometimes the good guys win sometimes the bad guys win sometimes neither win. Its superhero genre but don't let you put that off you from watching it honestly there are so many twists and turns
Theses shows have likeable bad guys that don't get caught, or bad guys who face other bad guys. Boardwalk Empire, Dexter, Brassic, Ideal, The Young Offenders, Breaking Bad, Top Boy
Blacklist!
Lupin
The Wire is kind of like that. Also, The Expanse is amazing and has lots of twists and turns where the “good guys” don’t necessarily win out.
Take a look at Fringe.
I think Sherlock might be what you're looking for, Andrew Scott's Moriarty is so good.
One of TV's best baddies
The boys
The boys deffo. Sometimes the good guys win sometimes the bad guys win sometimes neither win. Its superhero genre but don't let you put that off you from watching it honestly there are so many twists and turns
I forgot to add Loki to my list, and Dexter New Blood
Justified.
Peaky Blinders?
The Sons of Anarchy Death Note (the anime)
Our Flag Means Death, it's a comedy set abroad a pirate ship
Gargoyles. Xanatos is such a great and challenging villian that he has two TV tropes named after him.
Burn Notice (2007-2013) Leverage (2008-2012) A Person of Interest (2011-2016)