The Magnus Archives (complete) and in-progress The Magnus Protocol are some top-tier horror audio. The format keeps things away from most of the worst excesses of the genre - there are very, very few jump scares and although there are audio distortions they are mostly not too unpleasant - and it mixes in humor and human connection enough to keep things grounded. And unlike so many podcasts, it ends when it's done.
He also voiced Slay the Princess, a truly wonderful game I genuinely credit with helping me come to better terms with death.