New Teen Titans is a comic that started in 1980, but it was DC’s top-seller for years. Raven debuted in that series, and you get to watch the first Robin (Dick Grayson) adopt his Nightwing persona for the first time in the comic title. So, if you are someone who doesn’t mind reading older comics, you may want to check that series out. You’d be able to read the origins and original portrayal of this character you say you’re interested in.
For something newer, Raven had a six-issue miniseries around 2016. She also has a 12-issue series in 2018 called Raven: Daughter of Darkness. Her portrayal in those is very different from her original depiction, but her creator is the one who wrote the series, so I’ll forgive it. They may be worth checking out for you.
The Robin series that started last year starting Damian Wayne was surprisingly well-done. You could give that a try.
