Comedy ClubI have this club and area set up in the upper level of my dance club so comedy shows are an actual thing in my game.
There is also a buffet nearby so sims get dinner and a show.
http://i46.photobucket.com/albums/f116/cireking213/The%20Sims%204/Game%20Play/35%20Liking%20GT/12-26-15_9-01-45nbspAM.png
Romantic Couples Clubs.I have my sims in relationships have a club just for the two of them and they hangout in community lots that would be perfect for dates.
I see them when I am not playing them and their relationships stay strong because they are doing romantic socials.
http://i46.photobucket.com/albums/f116/cireking213/The%20Sims%204/Game%20Play/35%20Liking%20GT/12-26-15_2-43-01nbspPM.png
Movie Night ClubMy sims has a nice house and TV set up for movie night.
http://i46.photobucket.com/albums/f116/cireking213/The%20Sims%204/Stuff%20Packs/05%20Movie%20Night/01/01-15-16_6-06-55nbspPM.png
Art ClubMy art sim is a real art snob. He has a club that has a hangout in the art museum.
They paint pictures and add them to the museum. My cat-burglar cat sim steals them so they never run out of space.
http://i46.photobucket.com/albums/f116/cireking213/The%20Sims%204/Game%20Play/35%20Liking%20GT/12-26-15_10-11-04nbspAM.png
Void Critters ClubsChild sims hangout in a sort of cybercafe that has arcade games, Void Critters consoles, computers, toys, movies etcs.
It's also a hangout for my cosplayers. Kids can ask the cosplayers to see their cosplay costumes.
They also come here to watch movies.



http://i46.photobucket.com/albums/f116/cireking213/The%20Sims%204/09-26-16_8-34-52nbspAM.png
Cosplayers Clubs.My teens belong to cosplayer clubs. They hang out at the cybercafe to show off their latest outfit in preparation for GeekCon.
They hit GeekCon as a club too.
http://i46.photobucket.com/albums/f116/cireking213/The%20Sims%204/EP6%20Get%20Famous/03%20Expansion/11-21-18_3-31-34nbspPM.png



http://i46.photobucket.com/albums/f116/cireking213/The%20Sims%204/EP6%20Get%20Famous/Get%20Famous%20Moments/05%20Cybercafe/11-23-18_9-17-02nbspAM.jpg
Friends of Sulani Club.I group my favorite Sulani natives in a club that goes around cleaning up Mua Pel'am.
I use Sulani as a vacation destination. My visiting sims joins or forms this club and help clean up the island.
https://i46.photobucket.com/albums/f116/cireking213/The%20Sims%204/06-28-19_7-40-05nbspAM.png
They also hangout at the bar so I see more native sims there.
Dormies Club.So much time in Uni is spent studying, but once in a while there is time to hangout.
I make club for my dormies and give then activities specific for my made over Student Commons.
By next term, most of them will move out of the dorm, but I will still have the club to call them up in a pinch.
I will then have another sim in my group create a club for the new dormies and I can have two clubs at the commons.

Now that I think about it, I rotate between groups of my sims taking 2 terms at Uni.
I could have this group use the student commons as their hangout, and when I am playing another group at uni, I will see these hanging out at the commons.