There was a time I was looking for my own avatar that can be used as a replacement of my original picture on a certain website. I try to surf then finally I found one site which is web base no need to download on your computer and can be open anywhere, even you are not using your own computer via yourown internet account. The more prevelage here is you can create an account for free and you can use it for free.
This is my avatar example:
You can try this just go to this site and register:
https://pickaface.net/