Are you interested in getting an AI companion? Here is a directory. Let me know if I need to include anything else.
Character-based Chatbots:
Character AI: One of the most popular character-based chatbot websites. It has a gallery of characters that you can interact with, and you can even create and customize the character. The downside is that it limits explicit content. Sometimes you can't even talk about violence.
PygmalionAI Directory Page: If you want to have an AI companion with more explicit content, here is a Rentry page that contains everything you need to know about interacting with them. The downside is that it is not streamlined, but with enough effort you can interact with an AI companion.
JanitorAI: Similar to Character AI but allows explicit content. However, you must bring your own API keys from OpenAI or KoboldAI
Chub Venus: Website similar to JanitorAI that is run by 4chan anons
Kajiwoto: an AI chatbot platform that is more focused on the chat aspect (e.g. chatrooms, Discord bots, etc)