Lynwood is a small city and it is easy to get around by car. Consider renting a car if you do not have your own. Ridesharing services like Uber and Lyft are also available in the area.
For transportation to other cities, Los Angeles has a subway system and bus services that can take you to popular destinations. Expect traffic on the roads and factor this into your travel time.
If you have more time, consider visiting other famous Los Angeles attractions like the Walk of Fame or the Getty Center.
If you have less time, consider skipping one of the amusement parks and instead spend more time exploring the city's history and culture.