are there ways to let employers know you're looking for apprenticeship.Watch
Quick guides to apprenticeships
i couldn't find many Apprenticeship vancancies that appealed to me :/
The way to apply this late is to go to colleges and training companies and tell them what you are looking for. This will act as a clearing for apprenticeships where there are spaces left from companies who couldn't find suitable candidates or ones where candidates have backed out at the last minute.
Most companies recruit apprentices through a college/training provider so this is a good place to start.