I am looking for intraday option price data for stocks and indices listed on European markets (SX5E, SMI, DAX, etc). Ideally, I would like to get files as clean as those provided by ivolatility for US stocks and indices, see for example:
https://www.ivolatility.com/data/us-historical-intraday-options-data2.html
Thank you in advance for posting useful sources!