I also go to goodwill, there are loads of these all over the city.They have coloured tags and on different days the different colors are half off.
Its always worth looking in thrift stores!
I sell all of my thrifted stuff on my Depop account, so if you love this outfit then head over to the 'depop' app and search 'nofakes'
Also head to my instagram and follow for more outfit posts @badgaltrix