I use this site fella - postcode then "map features" for paid or free parking. It's trial and error for the arrival time to see if you get a space so start early and judge from there.
http://www.parkingforbikes.com/map/onlinemap
Good luck
http://www.parkingforbikes.com/map/onlinemap
Good luck
Those are my principles...if you don't like them I have others.