@The_Mercuria Looks like you started a new save for each Sim. You need to put them all in the same save if you want to have them all at once.
So basically start each save game and upload your Sims to the gallery. Then decided on one Save and place each family from the library into that save.
If you Click on a house that doesn't have a Sim living there or on a empty space and then choose the button in the right lower corner to add a new Sim.
I saved each household by using "save as" so that I could name them. (rather than my saved game 1, my saved game 2, etc)
As I create a new sim and move them onto a lot, I 'save as'. I never knew that you could make multiple saves. I'm not even sure I understand what that is. Could have sworn a few years ago when I was still playing that I saved and never had to go to the main menu to select another sim to play - I could just go to manage worlds and pick a house.
Now I have to upload to the gallery? I don't want to share my crappy sims with the gallery. ☹️
