I have one sim that tries to complete collections ( haven’t got many completed after all these years, but I do play rotationally and have a pretty big rotation.
I have a part time fisherman that likes to beach comb for collectibles to sell on the table, he also does woodwork, and has a hunting dog he takes out that digs things up too. His wife actually does most of the selling, But, next time I play them she is going to start knitting. They garden too.
One of my couples both have the active trait, he is a baseball player and she is in the media career. They have started a hobby of different physical activities, skiing, jet skiing, biking, jogging etc., the boyfriend buys the little simmies for his girlfriend.
One of my children sims likes insects, and frogs. unfortunately he has a small room and can’t keep too many. He also enjoys his chemistry lab.
I have one family with two children ( girls ). They enjoy their art table and puppet theatre. The parents will watch them participate in the puppet theatre, it’s cute.
One of my sims is a cook and lives with her boyfriend in an apartment. She looks for snow globes.
I have a photographer sim that travels around and takes pictures in different towns and sells them in his photo shop.
I have a painter that goes around painting things in the different towns, when he has extra time, I need to get him a little shop so others can buy them for their houses, or maybe put them in a museum.
These are just a few of my sims.....My sims all have different interests, that’s what makes them different and special.