My DD5 is very perfectionist and frustrates easily, so we're stearing away from anything that requires output and going with a lot of interest lead learning. The goal is to keep the pressure to a minimum. Some of the resources we're using:
Math: DD loves math so we explore it a lot through games and conversations. Our main vehicle for this is drawing numbers 1-100 with sidewalk chalk and hopping by 2s, 3s, 4s, etc. and talking about what we notice. We play store to practice with money and also enjoy a lot of board games like Pizza fractions and sum swamp. Some apps we're using for down time are Kahoot!, Mathland, Mathmage, Montessori Math Monsters. Bed time is when she's most focused so we've been enjoying bedtime math and terrible times tables.
LA: She has a grasp of phonics, can write her name, but no strong interest in reading, so I'm waiting for that to develop a bit before we try to push anything. She enjoyed Teach Your Monster to Read until she hit a wall that I think she's not quite ready to leap over yet. She can technically read, but it was a lot of effort and not enjoyable to her. So for now we're just focusing on exposure to good liturature, as well as random educational games and shows like Super Why, Alphablocks etc. here and there.
Science: I bought BFSU, but can't see us getting into it until DD3 is a little older. We just do educational shows, science kits, board games like valence, semi-weekly visit to the museum, and plenty of nature walks.
Social Studies: we have Letters From Afar and Time Trekker Academy subscriptions to spark curiosity about geography and history and we have conversations about what we read each month.