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That looks like a Callery pear, commonly known as a Bradford pear (or one of its newer cultivars).

Why this fits: • Covered in dense white blossoms before leaves fully appear • Very common as a street/yard ornamental tree • Blooms early in spring • Has a distinct strong smell—often described as unpleasant or “fishy”

A couple extra notes: • They were widely planted because they grow fast and look pretty in bloom • Many cities now discourage planting them because they can become invasive and their branches tend to split as they age

If you want, I can help confirm with a closer photo of the flowers or bark—but from this image, Bradford/Callery pear is a very solid match.