I hate LH rifles. I shoot longarms LHed. I prefer rifles designed for the RH guys since they're more common, I dont limit myself to only a few models of a few brands, I'm still able to manipulate the controls on most rifles, and someone else's rifle doesn't feel weird to me, other the the fact it belongs to someone else. Having said that:
The only thing that comes to my mind is the .308 from Bushmaster, even then the ejection port is on the wrong side for us (not much of an issue due to the brass deflector) and it still needs an ambi safety installed, but from what I understand the bolt release, magazine release and charging handle are ambi.
Someone has a LH firearms section (gunsamerica.com?), you could look through there to get some ideas, however the last time I looked most, if not all, were bolt-action.