Air-gapped transactions ..Core/Electrum/Hardware wallet options?

Otherwise_Key4605
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What are the current best approaches (i.e. hard to make a mistake that loses funds) to do air-gapped transactions from funds that are currently on a Bitcoin Core wallet?

Aside from Core, I think I can also use Electrum. Is there a hardware wallet option here where I can import the wallet's private keys on an offline machine?