Apart from tech meetups, I don't like attending crypto meetups because most of them are used to promote coins that often turn out to be Ponzi schemes. I know there are positive ones, but most of them aren't just held haphazardly. You can also watch out for the speakers, research them before attending. That could sometimes help in identifying red flag meetups.

In fact, the less you attend those crypto meetups, the safer it is for you, as fewer people will know you're involved in or have an interest in crypto. So, you need to be careful attending those kinds of meetups.