I suggest either Aqua or Blue Wallet.

Aqua for beginners because it's so easy to navigate. It can receive Lightning & Liquid (stored as Liquid) plus on chain payments. Liquid swaps easily to onchain inside the wallet.

Blue Wallet can be used by beginners or advanced users. Easy enough to setup for basic beginner use as a send and receive hot wallet. But has many bells and whistles hidden away.

Eg. has Plausible Deniability setting so that you can log into a different wallet if under duress. It'll also import watch-only wallets which you can use with your HWW signing device.