I have an interest in keeping an eye on investor sentiment, but don't have any data for it. Here are some links to pages that have some investor sentiment data:
CNNMoney: https://money.cnn.com/data/fear-and-greed/
American Association of Individual Investors:http://www.aaii.com/sentimentsurvey
YCharts: https://ycharts.com/indicators/investor_sentiment_bullish