There are many options of wallets to choose from to secure and use ETC. Each option gives a different balance between security and convenience. Please research the best option depending on your requirements.
Web Wallets
These Web3 wallets can be accessed using a web page. They shouldn't be used to secure large amounts, but allow you to easily interacting with ETC without downloads.
MyCryptoMyEtherWalletPortisSquarelinkBrowser Integrated Wallets
These Web3 wallets are integrated in web browsers. Typically, they inject websites with your account information in order to allow you to seamlessly interact with Ethereum Classic dapps in your browser.
BraveMetaMaskNifty WalletOperaSimpleHold WalletHardware Wallets
Hardware wallets are secure wallets designed for long term storage.
BitskiCoolBitXEllipalHTC ExodusLedgerParity SignerSafePalSignatory ClientTrezorSoftware Wallets
Software wallets are Desktop or Mobile devices designed for short-term storage.
ABRAAlpha WalletATokenAtomic WalletBTCPOPButton WalletCoboCoin WalletCoinbase WalletCoinomiCryptonatorEdgeEmerald WalletEthoseToro WalletEvercoinExodusGuardaHebe WalletHubrisOneHuobi WalletInfinito WalletJaxx LibertyMantis WalletMidas ProtocolOwnbitTokenviewTrust WalletTrustee WalletZelcore WalletZenGoOther Wallet Products
These products are complimentary to crypto wallets like recovery seed storage.
BillFodlBlockplateColdTiCrypto Key StackCryptoSteelCRYPTOTAGHodlinoxSteely