It depends on the scale of your company. Picnic along with sports games is a good idea!
Enjoyed this article from Hubspot! https://blog.hubspot.com/marketing/creative-team-outing-ideas
Ballpark (Boston Red Sox)
Animal House (College)
just got some new ideas, canoeing, kart racing and scavenger hunt are super suitable for the season! Be sure to take a lot of silly pictures and show them on the happy hour or annual gala:) Also, room escape, painting class, karaoke night are all interesting things a bunch of people will enjoy.