Most of the stickers I've got have just been given to me. At house parties or conventions or with clothes I bought. I've then commissioned an artist to draw my own stickers which I got printed and hand out.
Stickers get handed around like business cards so the stickers on your laptop/fridge are almost like a record of the people you met.
I don't really have any public share links for them, but the last one I got was my fursona as an Among Us character. I've wanted to get another set drawn up for a bit but the artists I was interested in either had really long wait times (1 year) or were quite expensive. I might just draw some myself when I get some time.
Stickers get handed around like business cards so the stickers on your laptop/fridge are almost like a record of the people you met.