If you want a personal AI assistant to sift through Telegram chatter and present you with the messages you'll find most interesting, Gruntly is worth a look. It creates daily digests based on your interests and extracts information from the Telegram channels and groups you follow. You can set your interests and get updates on things like job postings, hard-to-find product releases, or social event invitations.
Another good option is Lunabot, which uses Telegram's interface without requiring an API key. It's got features like translation, summarization and custom commands, so you can use it in a variety of ways to manage your Telegram alerts. Lunabot works on multiple browsers and mobile apps, too, and it starts with a free tier so you can try it out without breaking the bank.