Connect your iPhone to your MacBook with a USB cable
Unlock your iPhone and tap Trust if prompted
Open Finder on your MacBook
Select your iPhone from the Finder sidebar
Click General
Choose the sync options you want
Click Apply or Sync
Wait for the sync to finish
To sync wirelessly, connect both devices to the same Wi-Fi network
In Finder, select your iPhone
Enable Show this iPhone when on Wi-Fi
Click Apply
Keep both devices on the same Wi-Fi network and plugged in as needed
To sync photos, open the Photos app on MacBook
Select your iPhone under Devices
Import the photos you want
To sync music, use Finder or the Music app on MacBook
Select the content you want to sync
Click Sync
To sync contacts, calendars, and notes, sign in with the same Apple ID on both devices
Turn on iCloud for the apps you want in iPhone Settings
Turn on iCloud on your MacBook in System Settings
Make sure both devices are connected to the internet