I’m selling deadcoins.com (cryptocurrencies) due to lack of time to continue work on its features. It has around 300 visitors per day and more importantly, a very decent backlink profile.
A bot that keeps Trello cards in sync. There's also https://teams.cardsync.xyz/, a version that works as a Trello Power-Up. It is tied to Trello teams (so all team members can use) instead of to a single Trello user -- it also uses custom bots per team instead of a single global bot.
Block Daily is a crypto News Website that's already up and running with hundreds of news articles and a good SEO rank.
Have you met people that needs more than 30 minutes to decide what to watch on [netflix, prime, hbo]? Serieslist.io provides a way to add and vote series, it tries to reduce the time you spend deciding.