can you advise what hardware wallets would be good to secure your btc on for this BIP148?
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.).
Yes, You can use Trezor.
the service of Trezor is excellent,
it's trusted too. At first you may fetched a little problem bur if you understand proper uses then you find interest.