HBO Max (see also HBO)
(launched in May 2020; rebranded as Max in May 2023, changed back to HBO Max in summer 2025)
IMDb; official website; TV Tropes; Wikipedia

The streaming service includes all of HBO's content, plus a bunch of other stuff, including some original content.

stuff I've seen that originally streamed on HBO Max (2020-2023):

A Christmas Mystery (film; watched on Max)

stuff I want to see:

Clone High (reboot, on Max)
Doom Patrol (s1-2 on DC Universe)
Gremlins: Secrets of the Mogwai (on Max)
Harley Quinn (s1-2 on DC Universe) (Break Room of Geeks)
Infinity Train (s1-2 on Cartoon Network) (Break Room of Geeks (s3) (s4)
Peacemaker
Scavengers Reign (on Max)
Superintelligence (film)
Titans (s1-2 on DC Universe)
The Witches (film)
Young Justice (s1-2 aired on Cartoon Network, s3 on DC Universe)