I have seen some telegram tip bot, but those are not available for all kind of ERC20 tokens. You have to get accepted by that tip bot's developers, otherwise, you won't be able to use that bot in your group. Personally, I love the Parachute tip bot, it's easy and super fast and the team is very active to help the community. Right now almost 20 altcoins are listed on that bot, so, you can tip your community by those 20 major coins from the crypto market. If you want to have a look at that Parachute tip bot, just search on google or in telegram. Good Luck.
Thanks for your answer ! However if Parjar is cool it's closed sources (to my knowledge) and can't be tweaked the way we want. Crazy that there's not a single one on Github while there is dozens of them for Discord.