1) Try looking at a map to see what areas are nearby, there's a lot within a mile of that station if you only want to walk. IF you're willing to travel 10-20 mins by Tube then there's a large area with plenty of SPs. USe Google for travel time estimates between Aldgate and wherever the girls are.
2) Search AW in those areas for the girls that meet your pricepoint, looks and services criteria
3) Look up their review history here.
4) Once you have a shortlist then ask for any latest info on the girls you've chosen