Truthfully, I am not one to put costumes on my dog. I think my wife may have hacked into my page. Dogs never look very happy in costume photos, but damn are these adorable!
These are my favs: https://www.treehousepuppies.com/dog/accessories/best-dog-halloween-costumes/
More: https://www.halloweencostumes.com/deadly-doll-dog-costume.html
Here: https://www.goodhousekeeping.com/holidays/halloween-ideas/g1784/popular-pet-halloween-costumes/