The equinox is on Monday 20 March. The day and night are equal and it is a celebration of spring in the Northern Hemisphere. Here's a list of magical events over that time or so with a mixture of online and in-person things to do. I generally list events in the UK, especially in or near London, but some are a bit further afield.
Cunning Folk. Time: 7pm. https://www.eventbrite.com/o/cunning-folk-7829505560