go-to
noun
Definitions
A person or thing that is one's choice to go to (for some purpose).
Example: Going for a drink after work is usually my go-to.
adjective
Definitions
Desired; desirable; of choice.
Example: Cheesecake is my go-to food whenever I feel down.
Reliable; likely to perform in difficult circumstances.
Example: Smith is your go-to person if you want lasting results.