Myetherwallet is safe as they said that they couldn't save any of private keys but still more chances of hacked so i recommend you to use the hardware wallet beacause it's more safe than any other wallet and you can easily store you bitcoin in this wallets and anyone can't hack it but if you can't afford this then i recommend you to use the desktop wallet or paper wallet beacause these wallet are also very safe and you can get it free of cost.