Here’s a stoplist you can use http://bridge.library.wisc.edu/jockersStopList.txt
This link redirects and I couldn't find the original text file by googling, but the full stoplist is available on his website here http://www.matthewjockers.net/macroanalysisbook/expanded-stopwords-list/ I just copied and pasted into my text editor and saved as a .txt file