Agree with pps suggestions.
I would also agree to be emotionally prepared for a bit of a slog, and have patience!
Many people won't have time to prioritise a new solo female friend. If you do join a group they can be cliquey and unwelcoming or overdramatic.
(The people who latch onto you may be predatory or needy or difficult, so you won't want them anyway!).
Often people aren't interested or flaky unless you have something to offer - say you're super extroverted or well connected or host all the time.
So have patience and keep an open mind as to how things may look.
(I take an online course which has turned out after a year to be a great social space - but everyone's in America and we're on Zoom.
Or "Shut Up and Write" is great if you're working remotely).
Self-care can be more reliable than having a friend to confide in.
You may have some nice ad-hoc events or nights out, but nothing solid.
The people who are available and "out there" may not be your kind of people.
Meetups can be cool, but (depending on location) can be dominated by awkward or creepy or transitional types.
You have to sift through, try lots of things and have a thick skin and be around for 1-2 years to get 1-2 contacts.