One approach would be to use a record search engine to identify those records that could match your own records.
In addition, in my opinion, it would be a good idea to include identifier data records in your own publicated data records, which could make it easier to identify your own data in case of doubt.
Starting points for the search could be:
Found this overview. It gives a very detailed overview:
Edit: One can contact the "statistische Bundesamt" for additional data. It may require additional time and cost.
First, SciRev crowdsources and showcases data like that (but it is still sparsely populated, it seems to me).
Here is an example with IEEE Access:
Second, Publons should likewise have such data - but as an entity belonging to a large commercial enterprise, I fear they will not make their granular data available publicly. You could nevertheless browse around ...