The most reputable ones are probably: Exodus, Jaxx, Coinomi, Eidoo, Enjin (some of them had security issues in the past). The downside of these wallets is that they are not open source so you will have to take the developers word when they say "We're not sending the private keys to our servers". I wouldn't suggest using these wallets unless you are using them for holding small amounts. I recommend buying a hardware wallet, both Trezor and Ledger support BTC, Ethereum and all ERC20 tokens, in addition to some alts.