I love me One K, you get many of the features of a higher end helmet with the good amount of ventilation, the removable/washable memory foam liner that also allows for a pretty custom fit, and different styles to choose from. Not a low price per se, but they offer a lot more for a smaller price tag than other brands
Troxel, ovation, and Tipperary
Samshields or charles owen
I just bought a knightsbridge and it's amazing
Cami-cell. Really good helmet brand!
Ovation also we have the same name but spelled differently I spell mine Emily
IHL has good quality helmets, they come in a variety of colors and mine was only like $40
Ovation is good and I have a OneK which is a little bit more pricey but it's really nice.