I saw on Reddit last night that LangCorrect is finally open. It aims to provide an alternative to Lang-8, which has been closed to new signups and virtually abandoned for the last few years. If you aren't familiar with these sites, the idea is to write journal/diary entries in the language you're learning, and native speakers will correct them for you. To return the favour, you correct their entries. The site is here: https://langcorrect.com/ The more the community grows, the better, so please do sign up and give it a shot!