Can I try to give you some information ....
1. Orpinton is much better than Bromley in terms of the general living standards and commutering.
There are a lot of trains linking Orpinton and Cannon Street or London Bridge. It just takes less than half hour for direct trains.
2. Some other places you may consider is: Sevenoaks, Townbridge Wells. Although they are further away from London than Orpinton, they are much better than Orpinton. However, as they are further away the train tickets are more expensive.
