I'm not a fan of tinsel or most garland.
Our living room tree has a beach theme w/ white lights & blue & white, gold, natural wood, & seashell ornaments. To go w/ the theme & colors, I use gold & burlap ribbons. I also use natural raffia & just kind of toss it around the tree. LOL!
Our kitchen tree has a gingerbread & candy theme w/ white lights. I use green plaid & candy cane ribbons on it.
Our family tree has multi-colored lights & is a mishmash of all our ornaments (no particular theme). I use red ribbon. We also string cranberries and popcorn. However, for this year, I'd like to find some reindeer ribbon or maybe some pompom garland.