Consider starting a small co-op with 1-2 of your friends if your kids are of similar ages. Get together one day per week to do some subjects with all the kids. One parent can watch the littles while the other does school with the big kids.
Some ideas of things that can be done during co-op
Read Aloud and Narration (podcast explanation here)
Nature Walk/Nature Study/Nature Journaling
Learning with math manipulatives
Poetry (or upgrade to Poetry Tea Time)
Semi-independent seatwork (copywork, math, etc.)
Shakespeare (Start with abridged versions for younger kids or beginners.)
Foreign Language
Physical Education