Evergreen Parking Strip Tree
I live in Seattle, and have a 10 foot wide 100 foot long parking strip running north to south that gets a decent amount of sun. A phone wire (not power) runs 15 feet above the parking strip at its lowest point. I'd like a number of evergreen trees to provide a screen against a neighbor's house across the street that sits up on a hill and has many windows that look into two bedrooms. A complete screen would be about 15 feet high, but could be effective at a slightly lower height. I think I want a classic tree shape, but I am open to other ideas or to light training.
The options I have seen by my initial searches are arbutus marina (though I've heard it's difficult to start and may not grow straight), magnolia grandiflora, or certain azara varieties. Does anyone have any thoughts or suggestions?
As background, I just bought a house and have nearly zero gardening knowledge, but I am excited to learn and to turning the yard around over the next five years or more.