How can I become a better conversationalist?

I’m not good at conversing and most of the time my default is asking people how they’re doing (I know, boring) Sometimes I’ll follow up with asking what their hobbies and interests are, just so there’s something for us to talk about. It seems like there are obvious things I can do to improve but I’m curious: Anyone here who is really good at holding conversations, what are things you’ve done to improve your social skills, what topics are your go-to questions, what do you do to try and keep convos flowing?