How long is a piece of string?!
Some people use an online school like Interhigh or Oxford Home Learning (NB I'm not marketing them - they were just the first names that came to mind)
Some people get tutors in for the bits they can't manage themselves.
Some people do "unschooling" where they step away entirely from top-down adult led learning
Some people do mostly child-led, with a bit of [insert the thing you are most anxious that your child will need but never learn on their own] done in a top down way.
Some people send their child to forest school for a day or two a week.
Depending on where you are, there can be a LOT of opportunities for group trips to places with other home edders, or classes (e.g. art, drama, philosophy, geography, science, latin, spanish, french, music, pottery, coding, riding, swimming... all off the top of my head things that are going on in the city near us). Those tend to have shared costs between the families, so much less pricey than going it alone.
In lots of areas, there are regular weekly meet ups. There are also informal private co-ops, so it's worth being out and about and part of the trips and public events going on, because those of us in private co-ops tend to sidle up to people we meet and click with, and invite them to join with our weekly activity-based meet in a closed group. but you wouldn't hear about the existence of those publicly.
Facebook is the place to get connected and find out what's going on in your area - search for Home Education and then your county or nearest big city/ town, and you should find the groups. They are usually closed groups - you apply to join, and the admins send you a message (look in your "other" folder) so you can tell them you are bona fide interested in home ed, and then they add you to the group.