1) Make friends with someone who works for a company with an office that lines Broadway. It's the sky box version, with good view, good food, central heating, and indoor plumbing.
2) Alternative if travel, timing & temperatures are supportive: go to the grounds of Museum of Natural History the night before and watch the balloons being inflated...unless I'm no longer up to date, and that one-tone solid joy is now - like what you've just read about the parade - straight out of Yogi Berra, "Nobody goes there anymore. It's too crowded."
PS - Unlike with my punctuation corrections, I love that it is so commonly called the "Macy's Day Parade."