6x20-6x23 Black Siren Redemption

Theory
In episode 19 of season 6, otherwise known as "The Dragon", Laurel Lance, otherwise known as Black Siren, showed a lot of disgust and fear towards all the violence Ricardo Diaz, otherwise known as The Dragon, comitted. She turned her head away quite a lot and sometimes she tried to talk Ricardo out of killing some people. This got me thinking about a possible redemption arc for Laurel in this season.

Redemption
Since Laurel is disgusted by all the killing Ricardo does, she might snap. Once she snapped she understands what they have been doing wrong and then maybe snitches on Ricardo to Oliver Queen, otherwise known as the Green Arrow, and then later on maybe even joins Team Arrow.

Another reason why she could switch sides is maybe if Quentin Lance finds out about Laurel's connection to Ricardo and maybe even talks her out of it and try to make her more like his Earth One Laurel.

Other mentions
In 6x21 Tommy Merlyn Returns Predictions I also talk about a possibility that her Tommy Merlyn from Earth Two comes to Earth One to talk her out of it.

Verdict
Laurel is indeed standing up to Ricardo since episode 21 of season 6, otherwise known as "Docket No. 11-19-41-73". She talked about wanting to stand up with Quentin and she even fought Ricardo in the end of the episode. Which hereby confirms that one of my theories is correct.