Marathons are very puncture resistant, but I don’t like how heavy or harsh they feel. I found Big Ben’s with green guard the best for slicks on a 29er. Good comfort and rolling speed. Didn’t run either tubeless.
I’ve been commuting on WTB Rangers for the last two years and they have been fantastic. Lighter than Big Ben’s, far more comfortable, pretty fast rolling for a small block tyre, good grip off road, and fairly light, went up easily tubeless. Not one puncture either commuting through glass riddled urban paths. Done around 2000km on this pair.