One of the most important things about late game is Baron control. So take a look at this map
It’s essential to also not lose sight of a dragon attempt. While not as essential a team can crawl themselves back in with dragons. Notice the black stars with solid insides around the Baron pit. These are essential for Baron control for their respective sides. The deeper purple wards are more precautionary in case you need to know when the blue side is approaching.
All these wards can be additions to wards found in the mid game. At this point you should have an upgraded trinket. Baron (aka the throw pit) is notorious for turning the tides of battle, especially when not warded properly. Making things less stressful on your jungler so he/she can smite better by having plenty of vision is always the best.