Same for me. In group situations I always have the pressure to talk so I am not overtalked by other people. This obviously depends on the group, but that's gow I usually feel.
I also have a quite high "response latency" and people just tend to answer and share the stories quicker and more eagerly, so I feel often left out in those situations.
First, the best way to start a conversation is to inquire about the other person. Make them feel good by asking about them. In English, there is an acronym you can use (H-E-L-P) that has been around for a long time. Start a conversation with words that start with “H” first, like “health,” “home,” etc. And then move on to “E” words, etc. Have fun!!
I work part time for a startup in a coworking space and I enjoy it most of the time.
We have are usually 6-8 people in one room and it's not very noisy.
I like to have people around that work in the same field as me, but are not part of my company.
Also, we have coworking wide lunch or talks a few times per month, so you get to know the people and their startups. It's quite interesting in my opinion.
I'm also the kind of person that prefers talking in person to voice/video chat.