A follow-up for the externally-hosted image topic. I found a way to embed images from the absolute best image host on the web, Google Photos. The only problem with Google Photos is that you cannot embed images, until now and it is very very easy.
Pick your image from Google Photos, click on it. Now at the top of the screen it’ll show a share icon, click on that. Now a small white box will appear with share options, at the bottom it’ll say “Get Link”. Click on that and copy the link. Now you’ll go to https://ctrlq.org/google/photos/ It will generate an embed code that you simply copy, then paste into the text (not visual) editor of whatever forum, post, comment, topic that you like.
If that is too complex, go make an account at Imgur.