There are many public channels and groups on Telegram. Each channel or group usually focuses on a specific topic, and discussions or posts are centered around that theme. If you are interested in the content of a channel or group and want to find more groups or channels with similar topics, you can use the following two methods.
Similar Channels feature
You can use Telegram’s Similar Channels feature to find recommended channels with similar content.
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Open the Telegram app and select Channel from the options below the search bar. In the similar channels section below, Telegram will automatically show recommended similar channels based on the channels you have joined.

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Open the profile page of a channel or group, find the Similar Channels option below, and tap it to see many recommended channels with similar content.

Third-party websites
You can also use third-party websites that collect and organize Telegram channels. Recommended sites include TGstat and Telemetrio. These websites categorize channels, so you can first choose the category you are interested in, then refer to data such as language, number of members, and activity level to find channels that suit your interests. In addition to channels, these websites also list bots, groups, and more.