Since you asked what the actors all were up to after the show ended:
Viola Davis (Annalise): can't name everything bc it is A LOT but in summary: 1 oscar, 1 tony, 1 golden globe (she's an EGOT now after already receiving the emmy for HTGAWM), several other nominations for several movies, her own very succesful prodction company JuVeeProductions, the blockbuster woman king and most recently: G20
Aja Naomi King (Michaela): 1 emmy nomination for "Lessons in Chemistry", 1 son and currently the series "Grosse Pointe Garden Society"
Conrad Ricamora (Oliver): 3 musicals "Here lies love", "Soft Power" and his broadway debut with "The King and I" as well as playing Abraham Lincoln opposite Cole Escola as Mary Todd Lincoln in Oh, Mary! on broadway last year and recurring on the tv show "The Resident".
Karla Souza (Laurel): main character in the comedy series "Home Economics" as well as a couple of smaller movies
Jack Fallahee (Connor): PBS drama "Mercy Street" and a nice guest role on "Grosse Pointe Garden Society", he had to pause acting a while due to a serious injury but has a new movie coming out 2025
Matt McGorry (Asher): the limited series "Archive 81" and some smaller movies, but focused mostly on his activism on the environment and racial and social justice.
Tom Verica (Sam): he is the main director and one of the executive producers of Bridgerton and Queen Charlotte and basically every other Shonda Rhimes show
The others I don't know much about. Out of the cast Viola, Tom and Aja are probably the most famous. The entire cast is still very close, Jack stayed at Aja's house for instance during his injury and they all watched Conrad's broadway debut premiere.