That's like asking for site seeing places along Route 66 THEY'RE EVERYWHERE
Choose some mecca's on whatever app you use and go site seeing. Venice boardwalk, Santa Monica courthouse, Sunset carwash, Hollywood high, Lockwood, Staple Center, Fletcher Bowron Square/downtown, LA river, Cal State LA and drive by where Mountain Manner was and barge some ladie's backyard to feel the history. Haven't skated LA in 25 years and that's just off the top of my head.
Post some pics of places you can't find on a app and someone will try to help you out
My brother works in LA a lot and he swears by the waze app for driving instructions in LA. It takes you through all the side streets