The ERC2.0 standard is the basis for most of the current altcoin. Easily find wallets compatible with Erc 2.0 such as myetherwallet, imtoken, metamask, ... or wallet types like NaNo, Trezor, etc. Depends on your needs. if the value and the large number. You should secure them with your hardware wallet, or store them on separate wallets at the exchange. However, with recent issues about hackers (the latest is bancor). I recommend using a hardware wallet.