If you're looking for another Noctie.ai alternative, Knightly Chess is a good option. It offers strategic advice and detailed move-by-move analysis for improving your chess at all levels of the game. Knightly Chess offers detailed reports on your games, scoring for accuracy, and the ability to compare your moves to those of grandmasters. It can be used in conjunction with platforms like Chess.com, letting you import games and see where you need to improve.
Another notable alternative is Chessvision. This suite of apps offers real-time analysis and interactive tools for chess content from around the web. It includes a browser extension to scan and analyze chess diagrams on websites, an ebook reader for interactive notes, and a phone app to recognize positions on digital documents. Chessvision also offers bots for analyzing chess images on social media platforms, making it a useful tool for chess fans.