A telegram channel is completely unnecessary for you to learn the basics of arbitrage, if anything arbitrage is probably the most simple ways to trade the markets, you find a coin in an exchange which is trading for a lower price than in another exchange and then you buy it, then in the other exchange you sell it and you pocket the difference, that's it, I have saved you a lot of time by that short description, however the problem is how to find those differences in the price and then how to take advantage of them? Something that very few people can do.