Are there any public bots that you can put a specific message in a channel and if users react to that message, the bot gives you a role (i.e; Like this bot)? :
YAGPDB
How to Add Reaction Roles in Discord
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Carl-bot Dashboard
Bot send message after user click on reaction and when he delete his reaction (python, discord) - Stack Overflow
How to Use Carl Bot for Roles on Discord - TechWiser
How to Add Reaction Roles on Discord?Best Reaction Roles Bot