Popsugar is a lifestyle magazine and their reading challenge has been around since 2015. On their website they list 40 book promps and additional 10 advanced prompts.
Here they are:
Progress: 10.03.2023 10 / 40 and 2 / 10
A book you meant to read in 2022: Jean-Luc Bannalec - Bretonische Nächte
A book you bought from an independent bookstore
A book about a vacation: E. Lockhart - Solange wir lügen
A book by a first-time author
A book with mythical creatures: C.S. Lewis - Der Ritt nach Narnia
A book about a forbidden romance: Edith Wharton - The Age of Innocence
A book with "Girl" in the title: JP Delaney - The Girl Before
A celebrity memoir: Jane Goodall - Grund zur Hoffnung
A book with a colour in the title: Nathaniel Hawthorne - The Scarlet Letter
A romance with a fat lead: Thalia Hilbert - Kissing Chloe Brown
A book about or set in Hollywood: Astrid Vollenbruch - Die drei Fragezeichen - Schatten über Hollywood
A book published in spring 2023
A book published the year you were born: Primo Levi - Das periodische System
A modern retelling of a classic: Madeline Miller - Das Lied des Achill
A book with a song lyric as its title: James Baldwin - Go tell it to the mountains (Von dieser Welt)
A book where the main character's name is in the title: Volker Kutscher - Marlow
A book with a love triangle: Kazuo Ishiguro - Alles, was wir geben mussten
A book that's been banned or challenged in 2022: Caroline O'Donoghue - Die Macht der Karten
A book that fulfills your favourite prompt from a past challenge
A book becoming a TV series or movie in 2023: Jonathan Stroud - The Screaming Staircase (reread)
A book set in the decade you were born
A book with a queer lead: Ocean Vuong - Auf Erden sind wir kurz grandios
A book with a map: Alan Garner - The Weirdstone of Brisingamen
A book with a rabbit on the cover: Alice Pantermüller - Alles voller Kaninchen
A book with just text on the cover: Jörg-Uwe Albig - ueberdog
The shortest book (by pages) on your TBR list
A #BookTok recommendation: Sally Rooney - Schöne Welt, wo bist du
A book you bought secondhand: Andreas Föhr - Herzschuss
A book your friend recommended: John Boyne - Der Junge auf dem Berg
A book that is on a celebrity book-club list: Brit Bennett - Die verschwindende Hälfte
A book about a family: Celeste Ng - Was ich euch nicht erzählte
A book that comes out in the second half of 2023
A book about an athlete/sport: Frederik Backman - The Winners
A historical-fiction book: Nathaniel Hawthorne - The Scarlet Letter (Libri Vox Audiobook)
A book about divorce: Liv Constantine - Dein Leben gegen meins
A book you think your best friend would like: Fredrik Backman - Eine ganz dumme Idee
A book you should have read in school: Margaret Mitchell - Vom Winde verweht (Audiobook)
A book you read more than 10 years ago
A book you wish you could read for the first time again
A book by an author with the same initials as you: John Ironmonger - Der Wal und das Ende der Welt
Advanced
A book written during NaNoWriMo
A book based on a popular movie: Cornelia Funke & Guillermo del Toro - Das Labyrinth des Fauns
A book that takes place entirely in one day: Virginia Woolf - Mrs Dalloway
A book that was self-published: Virginia Woolf - To the Lighthouse
A book that started out as fan fiction: Ali Hazelwood - Die theoretische Unwahrscheinlichkeit von Liebe
A book with a pet character: Enid Blyton - Fünf Freunde und die wilde Jo
A book about a holiday that's not Christmas: Louise Penny - Das Dorf in den roten Wäldern
A book that features two languages: Chimamanda Ngozi Adichie - Americanah
The longest book (by pages) on your TBR list
A book with alliteration in the title: Kathy Reichs - Kalte, kalte Knochen