Here are 2 sound mats with all the sounds we practise daily in class. Repetition is important for your child's memory to continue to hold these sounds in their head. Please get them to say these sounds out loud - they should be able to show you an action to go with the sound.
If your child is after an active way to practise these sounds, you could write the ones they find tricky with chalk outside, or on different pieces of scrap paper. Once these are spread around the floor, say one of the sounds and your child can run to that sound and jump on it, saying it themselves.
There are also Jolly Phonics Sound Mats to help you with the actions for different sounds.
If you are isolating, one of the best things you can do is practise phonics with your child. Below of some details about how to do this for free online!