Placements in a hospital, volunteering at a care home or anywhere really, i know its not work experience but still really important for your med school application…
Online work experience e.g Brighton and Sussex medical school, medology
If you want any suggestions in how to find Wex and you live in London then you can look into GOSH young visitor programme and some other hospitals also have similar applications for work experience. Alternatively you could ask family/ friends if you can shadow them or email doctors. Hope this helps, good luck!