I probably wouldn't repot them at the moment, but it is up to you. You have to balance the probability of mould growing vs the stress to your plants by repotting them again.
Try to keep your houseplants where they will get good airflow and sunlight (you could even use a fan to help circulate air and dry out the mix). Let the potting mix dry out somewhat before you water them again; you don't want your plants to dehydrate, but the mix doesn't need to stay sodden, either. This will help discourage any mould growth.
A problem with using any of those (baking soda, vinegar, hydrogen peroxide) is that if you apply them to a pot plant, it can upset the balance of the soil and the plant will suffer (or possibly die). If mould does start to grow, then wear your mask and take the plant outside. The extent of the mould growth will determine the best course of action at that stage; often it is possible just to remove the affected bit of soil and allow the rest to dry out thoroughly.
