I have (I think) finally found a way to export my Sims and share them with you. !!
This is a female sims I made for my game so I exported her mainly as a test to see if the whole process works. The Family name is Tillman and she is a sims generated by the game that I edited. The file attached should also include all the CC I have used in my game.
Now this part is tricky. You may already have some of those cc but in different folders. Some of the CC may have been edited by me. So you need to make sure you do not end up with duplicates. Not that it would cause any serious problems but it is best to avoid it.
In the file attached, you will find 2 folders. A folder named "Tray" and a folder named "Mods" exactly as there are in your sims 4 document folder so just unzip the file in your Documents Sims 4 folder. You can choose not to install the mods, but if you do not have the CC required, the Sim will not look like this. BUT..
In the mods folder I try to install everything by category. Body mods to a "Body" folder, clothing mods to a "Clothing" folder etc so you can choose what to install. There may be some stray mods though.
So, if you want, try to install this gorgeous girl, and if everything goes as planned I can start exporting more Sims. :)
*Edit
I have updated the image with the correct gilr. The previous one was wrong and the family name is indeed Tillman.
Please tell me if it works correctly or not.