Bitcoin
Where to buy
Cash App - Higher fees; In order to purchase with no fees turn on auto-invest or setup your direct deposit to purchase bitcoin
Strike - Setup recurring purchase for no fees
River - Zero-fee for recurring buys
Kraken Pro - Lowest fees, advanced
How to store
Download Bull Bitcoin Wallet - Create a wallet, back it up
Purchase a hardware wallet: (either is fine)
BitBox02 Nova (Bitcoin only edition) - Easy to use / Plug & Play
COLDCARD™ Q - Advanced / Learning Curve
Once you receive either hardware device, set it up and connect it to your Bull Bitcoin Wallet.
Guides:
BitBox02 Nova - Set it up with a passphrase