With Echo Notification Lockscreen, you can get notifications to your lockscreen and manage which ones you see and when.
Download Echo Notification Lockscreen from the Play store and open it up. It will prompt you to give it access to your notifications. Check the box that appears after you click on the Turn Notifications On button to activate the app.
Tap on Notification Groups. This will show you a list of all the apps that are set to appear normally, as a priority or even not appear at all. Tap on a particular app and you can then alter its status to any of the available categories.
You have now customised your lockscreen to see notifications as and when you desire. Tap on each category to open up a list. Tap again to collapse them if you want them to stay on the lockscreen, but not remove them entirely.
If you want to stop certain notifications coming through, tap and hold the text. This will bring up the option to Snooze alerts from this particular app, say if a group chat is getting annoying or re-categorise them quickly and easily.