For hardware wallet, Trezor is good. If you don't have a large amount of bitcoin, you can go for mobile or desktop wallet too. But make sure have a backup. You can go for BICOIN CORE or BITCOIN KNOTS and can hold your private keys. This would help you in securing your bitcoin in case of possible chain split. Remember to be on the safe side, avoid any transactions on and shortly after August 1st. (How “shortly after” depends on what happens.).