I've never heard of the Asch Experiment, but this video is worth watching.
Kaplinsky's article gives some good classroom ideas on how to avoid groupthink in student responses, even highlighting the Desmos teacher view to anonymize responses (which also works outside of math.
During student teaching, questioning was the first thing my training teacher worked on with me. I was prone to asking, "Who knows..." which left the door open to zero responses. Moving to direct questions, "What is...?" or "How does...?" removes escape. I also recall another great post (I can't find it now) about leaving uncomfortable silence after asking a question. Letting several hands go up in the air allows for discussion as you can call on more than the first student.
Mixing Kaplinsky's ideas with leaving room for responses is a great way to help students feel comfortable with replying, even if they disagree with others.