Which wallet do you consider for ERC-20 tokens and how safe is it?
MyEtherWallet (MEW) is a pretty safe Ethereum wallet, and it's even safer with a hardware wallet. However, with MEW you have to be careful with phishing, because that's the preferred way for hackers to steal funds with it.
Well MEW is an old veteran wallet but still very good and works well without problem. Yeah, the only problem is myetherwallet have so many phising sites so becareful about that and always bookmark the real mew site and always check twice or even more before login into your wallet.