I first fell into the world of situation voice dramas through Atsushi Domon's works, and from there I discovered Wataru Mitsuhashi and Nikaisen Ataru-san's works as well. Now I've been listening to works by so many different voice actors that it's pretty hard to pick just one favorite!
That said, Wataru Mitsuhashi's えーくんの遺書 (E-kun's Will) left such a long-lasting impression on me after I finished listening to it. It was absolutely amazing…!
There are some insect wing sounds and death-related themes in it, so I think it may not be for everyone, but if you haven't listened to it yet, I definitely recommend it!
土門熱さんの作品からシチュボ沼にハマり、そこから三橋渡さん、二回戦中さんの作品を知り、現在たくさんの声優さんの作品を聞いているので中々1人を絞るのが難しいのですが、三橋渡さんのえーくんの遺書という作品は聞き終えたあとの余韻が長く、最高でした…!虫の羽音や死ネタがあるので人を選ぶ作品かとは思いますが、もしまだ聞かれていないようでしたらオススメします