The list of Ariel target candidates, called Ariel Mission Candidate Sample (MCS), is regularly updated with the new exoplanet discoveries and available in a GitHub repository:
Access here the Repository for the Ariel Mission Candidate Sample
If you are interested in the stellar properties, please consult the Ariel Stellar Catalogue, created and maintained by the Ariel Stellar Characterisation working group.
An interactive website providing the complete list of observable planets by Ariel and an Ariel performance calculator will be available in 2026.