LA has 93 rail stations spread across at least six lines that covers 105 miles right now. https://en.wikipedia.org/wiki/Los_Angeles_Metro_Rail
There are also a number of new lines and extensions coming up: https://www.metro.net/interactives/datatables/project/.
The Crenshaw line is close to opening: https://en.wikipedia.org/wiki/Crenshaw/LAX_Line