Too lazy to interrogate Riddler's informants or looking up a guide somewhere on the Internet?
Well don't worry, this guide right here on Steam contains every map that shows every location of his trophies, riddles and TYGER cameras in each district and indoor areas. Taken straight from Gamesradar's website which contains a walkthrough if you're struggling on getting the trophies:
https://www.gamesradar.com/batman-arkham-city-riddler-guide/#article-body

Yes, the name of this guide is based on the name of the collectables in Arkham Asylum.