I like to top cream cheese on bagel with sliced cherry tomatoes or fresh figs if they’re in season. You can also mix some chopped raisins, a bit of honey, and cinnamon into plain cream cheese for an easy, yet yummy spread.
Want to make it extra yummy? Dried tomatoes. One of the white pizze that I prepare often is mascarpone (basically cream cheese), sun-dried tomatoes and mushrooms, it's really easy to adapt this into your bagel.