up your alley
US /ʌp jʊər ˈæli/
UK /ʌp jʊər ˈæli/

1.
well-suited to one's tastes, abilities, or interests
:
•
This new project sounds like it's right up your alley.
•
I found a book about ancient history, which I know is up your alley.
well-suited to one's tastes, abilities, or interests