Sound dampening door

My office reno is done to the point where I'm now looking into (interior) doors. I spent a lot of time and money soundproofing the room and don't want to diminish diminish the effort at this point.

I do, however, need to go with 32" paneled doors. Two doors will create a sound dampening air space, but there is a laundry room between the two doors just outside my office door. (I may have to go S.C. non-paneled with that one, but I'd really prefer not to...).

I know they make solid core paneled doors. Are these better for sound? I'm trying to balance sound dampening with appearance. ANy other suggestions (I'll be addressing the threshold issue as well).

Thanks!