You can use a combination of Rails renderers, ActionCable, PropsTemplate fragments, and preloading to stream updates to your users without much effort.
For example, if you already have an ActionCable channel setup, simply render the props and send the rendered node over the wire:
# index.json.props json.data(search: params[:bzq]) do json.posts do json.array! @posts, partial: ['post', fragment: true] doendendend