catbird seat

box seat

A favorable vantage point.

fly by the seat of one's pants

To pilot an aircraft without the aid of instruments and without a flight plan, using only instinct, visual observation, and practical judgment.

have a seat

A polite directive to sit down

in the driver's seat

Having the most important role in a storyline or recognition. Of primary importance.

ringside seat

Any vantage point providing an excellent view.

take a back seat

To adopt a position of noninvolvement.

take the front seat

to take priority