WebPajooh

You can show your channel members count in your website, with a function or shortcode. the function can be used in template codes, and shortcode can be used in your posts.

tgStatistics

Pigrecolab

A Newsgram is a newsletter towards a Telegram Channel. Using this plugin you can sent your Telegram channel text messages, images or post. You can also schedule your sending.
It provides:
<ol>
<li>A custom post type “Newsgram” where you can add your messages, images, post to send your channel</li>
</ol>

Newsgram

A Newsgram is a newsletter towards a Telegram Channel

tgStatistics vs Newsgram