In my head libertarians are the right and anarchists are the left but they are similar in ideals (little to no government intervention). At least in the sense that if you talk to a libertarian I feel they tend to sound socially right and an anarchist tends to sound socially left. I have no idea if this makes sense at all. If you’re going to tell me to read more, sure, recommend some literature though.
The term was original essentially a synonym for anarchist, being coined by Joseph Déjacque. Modern American libertarianism broke from its roots and promotes very un-anarchist perspectives. However, in my observation they do use anarchist framing and terminology. I view it as a right wing ideology for people who are attracted to the left. I believe, for this reason, libertarians are some of the easiest leftist converts.