I liked Leatherup xelment evolution (white)As someone posted, Leatherup is good for cheap gear, my first helmet came from there. It can be tough to pick a size without trying it on but they had a chart and I measured my head and it worked out.
Many online shops offer free returns for size on clothing or helmets, shop those places if you might have fitment issues.
If you want to try on a bunch for size and shape see if there is a cyclegear store nearby, they are all over the country and usually stock a lot of helmets from cheap to $$$, you can try on dozens and they don't mind at all. They have their house brand BILT which are not bad for the money at all, especially if they are on sale which they often are.