Can someone suggest to me some real-world datasets for anomaly detection? I have surfed the web enough for this and I am looking for those unique datasets for specifc domain (be it fintech, adtech or edtech) which have some tested anomalies.

Essentially the kind of datasets I am looking for is/are: Let us say a company holds transaction data and in the 'transaction_id' column (which is all numeric) instead of integer values, a varchar as appeared due to some error. Or if there is a column holding D-o-B in specific format. that format is missed. Hence. I am essentially looking for errenous dataset. Any pointers to such open source datasets will be of great help