>>19450159Kenmochi is the first one who comes to mind. Though he's been busy with things outside of streaming, the kusoge he streams works as zatsudan as well. His humor is very quick/witty and has the best banter with chat imo. If you aren't used to abrasiveness its quite a different experience. He's quite mature too, as a huge vtuber fan himself, and has a healthy relationship with streaming/fan activity so you may hear his opinion on that.
Genzuki does long zatsudans, from 4-10 hours. Even his karaokes are 90% chat 10% singing sometimes. Topics range from music to makeup to animal mating cycles to what the meaning of true love is, it's a little adhd at times. He does talk about girly things but I still find his humor 'masculine'. He also won't take any shit from chat, very headstrong.
Mayuzumi has taken a break on zatsudan for now but he would have a semi-weekly chat that touched on the latest tech news, life and Nijisanji updates, and whatever was on his mind.
As for humor, I find Fuwa, Kuzuha, and Gaku funny but they're way more game stream oriented. Gaku has a weekly breakfast show that is mostly fan's food showcases, cooking stories, and news.
I don't watch them frequently but Joe and Gwelu are also hilarious with a lot of chatting content. Joe has a radio show with Maimoto and Gwelu has random Youtube shorts or streams talking about uni, math, even a stream teaching viewers what bitcoin is (though it was a little lacking imo)