by Johan G » Thu Dec 03, 2020 10:41 pm
I use Flickr.com. Imgur.com seem to work well too. There are lots of them.
Keep in mind that for the image to be shown, the link must go directly to the image and as far as I understand it need to end with either .jpg, .png or .gif. You should get an appropriate link if you right-click your image as shown on the image hosting site and chose "Copy image address" or something like that.
Some sites have a "Share" link that can give you BBCode (that most forums use) to "embed" your image in a message.