Hi, I'm new here. I want to know that which exchanger is good for exchanging Erc20 tokens?
Go on coinmarketcap and look for yourself. Search up the token that you are looking to trade, scroll down, click "markets", and there you will see a list of exchanges. However, just make sure that the exchange that you are looking at isn't shady, like Yobit, HitBTC, etc.
If you are willing to conduct KYC, then the amount of exchanges that you are able to use to exchange your cryptos is huge.
I personally think that if you're a newbie, then you can't really go wrong with Binance at the moment. They are one of the top exchanges, yet they are still offering no-KYC accounts, which is a rarity these days. Though, since you're new, make sure that you never use exchanges as a wallet. That's a huge mistake that a lot of newbies make.