As a NSFW Content Creator, requests to chat offsite become numerous but the choices may appear small with options such as Snapchat, Telegram and WhatsApp. These options can be useful if you already know the person as a friend, family or co-worker but as a form of communication with a person that you know absolutely nothing about or their intentions, these may not be the safest or secure options to protect your data or physically yourself. With the amount of information that can be obtained by these apps, its no telling what can be shared to others either consentually with your agreeance to Terms and Policy or non-consentually. Nothing is 100% secure proof but making well informed choices on what you utilize when interacting with consumers, fans or followers can make all the difference. To ensure a session is going to be private (1:1) or if you don't feel comfortable with a person being added as a friend or providing unnecessary information, I suggest disposable rooms or hosting your own chat/video room. Conference rooms that can be created as a one off won't save your data, accounts won't need to be created and no app downloaded or if you host your own room on your own server then you control all aspects of what features are allowed or not allowed to secure your space.
Add free live chat to any web page.
Chatango is a live group on your site
Enhances video, breaking news, and developing stories Ideal for community, hobby, sports and weather sites Enables dialog between visitors and announcements from administrators
Features .
RumbleTalk provides a stylish group chat for websites. Using HTML5 and WebRTC technology, it is perfect for teams and groups discussions.
Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.
There are 3 different versions that I am aware of (Mirotalk, Mirotalk p2p and Mirotalk SFU), each having their own distinctive features. I suggest you look into each one to find the best version that fits the goals you look to accomplish.
Chatzy is a free private chat service which you can use to communicate with people you already know or people who visits your blog or website. With Chatzy you can create a chatroom and send out email invitations very quickly and easily. No registration is required.
Chitchatter is a free (as in both price and freedom) communication tool. Designed to be the simplest way to connect with others privately and securely, it is:
The preservation of privacy is the main driver for this project. Secure technologies, such as WebRTC, are used to establish a direct connection between the participants. The website that provides the web application and mediates the communication stores as little data as...
FaceFlow is a free web-based application for video calling and group video calling. It also offers additional features such as chat rooms.
iMind is a video conference app with up to 200 (video+audio) or 1000 speakers (audio). Edit boards together through Board sharing, access all files with Storage, reach every employee with Contacts, plan the workflow with Timetable.
There is a plethoria of conference room or meeting room providers to check out. This is a tiny sample of what is made available for someone that would like to provide private video chat sessions while also being mindful of their data and security.
Comments
You could add multiple great private solution such as the FOSS
Jitsi Meet and its fork 
Infomaniak kMeet , the solution from cisco 
Cisco Webex and a few I have never used such as 
Jami , 
Whereby or 
Mirotalk