Of course, myEtherwallet is out of competition for storing Ethereum and ERC20 tokens, but what about other cryptocurrencies, in particular bitcoin. Friends offered me the choice of Trustee wallet, Electrum or Coinomi, but this is practically the storage of funds using third parties. After all, the availability of own funds or the viability of these wallets must be constantly monitored, because no one excludes the fact that, for some reason, these resources will cease to exist.