Which chat for the site to choose?

Question

Chats

Interested in the specific functionality of the live chat
fully satisfies the requirements except for the price and language of intercom.com
Task: Sending a screenshot from the buffer to the chat (in contact - well, it doesn’t roll with its undignified simplicity)
A special feature is to show the user something on his side - you need a chat for those service support, where there are a lot of new people and a bunch of settings, but no one wants to read and understand.