I´m user of Electrum wallet. But it just uses BTc. Is there a trustable wallet like Electrum which can be used with almost or all other coins atm?
Which is the best cold (hardware) wallet now, because there are so many offers and it is difficult to select one?
Most of the wallets for holding multiple coins are closed source and I would never recommend them for holding larger amount of coins but some of them like Exodus or Coinomi exist for years and people are using them without any issue.
I would however suggest using some open source hardware wallets like Trezor or Bitbox that support Bitcoin and other major cryptocurrencies.
You would have to pay for them but you will get extra benefit of offline keys and much lower risk of losing coins because of malware in your computer.