Oh boy……..you just opened a can and don’t realise it. Most on here are hardcore full faced helmet folk and not without good reason. However myself I wear both depending the ride and weather.
As far as what is out there…..Personally I will never buy another Bell helmet. I am looking into outlaw brand half helmets. Make sure what you get is definately DOT certified at minimum. Best thing to do is go to a shop and try some on to see what fits your head shape. Also be careful about local laws concerning the quick release features. Some states have banned them.