something that expresses praise or gratitude
paean - tribute
The word ‘paean’ was coined in ancient Greece and was used to describe a hymn of praise sung to thank or glorify a deity. It has since been adapted to express a speech, piece of writing, or work that acclaims or honours its subject. This term is most commonly used in written English, particularly print media.
I ended my speech at the AGM with a paean to my boss who was retiring after 40 years at the company.
The movie was not an objective look at the life of the famous figure. It was more of a paean to her greatest achievements.
Corporations often make paeans to popular causes in order to appear virtuous, but rarely follow them up with any action.