All of these Master’s will admit students with enough relevant work experience without a Bachelor’s degree. If your work experience is tangential to what you want to study they might tell you to go do a MOOC and apply again with proof you did well in it.
University of Oxford Master’s in Software Engineering
https://mba.london.ac.uk/overview/programme-structure/
University of London (Queen Mary’s) MBA
https://london.ac.uk/courses/finance-major-banking#entry-req...
SOAS University of London Master’s in Finance
All of these Master’s will admit students with enough relevant work experience without a Bachelor’s degree. If your work experience is tangential to what you want to study they might tell you to go do a MOOC and apply again with proof you did well in it.