Using jerboa I tried to upload a picture post multiple times on 2 different communities and every time it made the post but without the picture. It also gave me a “job cancelled” error message.
Have posted successfully before, not sure what is different this time
You got any personal favorite? Only criteria I have are being able to use it on mobile, not needing an account and have it be able to preview inside jerboa without having to specifically open an external link
So much requirements haha, but you can create an account on pixelfed or a free one on hostinger or a service that allow your use for free.