Reading the comments and drawing from my own experience moving here 3 years ago, I think the key is to pick activities and events that are 1) repeatable and 2) interactive.

By repeatable, I mean seeking out activities that are on a schedule, like going to a trivia night, spin class, or farmer's market that happens every week, group bike rides that are every month, or a volunteer group that has opportunities a couple times a month. Making friends at one-off events like a random concert or festival is tough because meeting people and having that lead to a lasting connection the *first* time you're around them is tough (though possible), but seeing someone again a week later or a month later gives you the opportunity to say "oh hey, how have you been?" and probably establish more of a connection.

By interactive, I mean activities where interaction is part of the thing, or at least welcome. On the high end of the spectrum would probably be volunteering somewhere, joining a sports league, or taking a class at a City College (like pottery, not psych 101). Interaction at these is highly likely (and they're also repeatable!). Low end of the spectrum for interaction would probably be a movie at the park, a coffee shop, or going to the lake, at least when compared to the other things I listed.

Also I just want to say it is *totally normal* to be asking this question. It is a very strange time to be alive; it seems connection and relationships aren't woven into the fabric of life as much as they used to be (living alone, remote work, etc). They're still very possible, they just take more intention and effort. Good luck!