You can explore the PlayStation Now library online. Just click the blue button that says See All Games.
If it says Not available for purchase you may have already used your PS Now free trial.
You can also select Connection Test to test if your internet connection is fast enough for PlayStation Now.
If you decide not to continue your subscription after the 7-day free trial, you will need to turn off auto-renew before the trial is over. To turn off auto renew on your PlayStation 4, navigate to Settings. Then select Account Management. Select Account Information, and select PlayStation Subscriptions. Select PlayStation Now Subscription and select Turn Off Auto-Renew.
If you don’t see the PS Now app on your main dynamic menu, navigate all the way to the right and select Library. Then select Applications in the sidebar to the left, and select PS Now in the Applications menu.
Alternatively, if you know of a specific game you want to play, select Search instead. Select Type to search and use the on-screen keyboard to type the name of the game you want to search for.
Press the PS button on the controller to access the PS Now menu. Press the right side of the touchpad to press Start. Press the left side of the touchpad to press Select.
Sony recommends using a wired connection with an Ethernet cable for the best results when using PlayStation Now.