I suggest you to try out Cryptolinks, as here you will not only find the BEST Telegram Groups, but also you will be able to find various other information. It is basically the finest source when it comes to Cryptocurrencies and got every information you could wish for to have.
So, that’s where you can really look into this and help yourself towards the right direction. I always use this site to help me getting any Crypto information.
These seem like good suggestions all in all, but I'm personally always weary of these types of things. Make sure they aren't pump and dump schemes and that you can make real money with real information. Always check for the veracity of all of your sources and do your own due diligence