For several years now we’ve been using, and highly recommend, the Classical Education materials of Memoria Press. You can check out their Classical Core Curriculum here.
25 years ago, when I first started homeschooling my children, we used the curriculum from Christian Liberty Academy. Also highly recommended. We still use their testing services.
It’s also possible to create your own homeschool curriculum. But the most important things of all is to simply spend quantity time with your children, and in that respect the current global catastrophe just might be a blessing in disguise. You never know how much time you might have; use it wisely.
Children are a blessing. C̶r̶e̶d̶i̶t Debt is a curse.