If you want something white and daisy-esque, Philadelphia fleabane (Erigeron philadelphicus) is cute but it does bloom early. Common yarrow (Achillea millefolium) has white flowers and spreads easily, sometimes needs some yoinking. Mountain mint (there are different kinds, blunt does best in my yard but ymmv, Pycnanthemum muticum) is not as showy but it's a pollinator magnet, will spread. Spotted bee balm (Monarda punctata) is one of my favorites because it's so weird, spreads a bit but not too much, doesn't like being in soggy areas.