For Sparking Interest:
1) The Cook's Presence,
2) Witch at the Farm,
3) The Flute Boy,
4) Artemo the Literary Lion,
5) A Velian Epic,
6) Mysterious Sculpture,
7) Olvia: A Travel Sketch.

If asked to fail x1 time, then this is good:
1) The Flute Boy,
2) Artemo the Literary Lion,
3) A Velian Epic,
4) Mysterious Sculpture,
5) Olvia: A Travel Sketch,
6) The Cook's Presence,
7) Witch at the Farm

Interest level 37 / Favor 27
Fails interest x4
1) The Flute Boy,
2) Artemo the Literary Lion,
3) Mysterious Sculpture,
4) Velia Specialities
5) Travels in Media
6) The Cook's Presence
7) Flute

https://imgur.com/a/rzw4SZ1
Only for max amity (talk freely, minimum favor, accumulated favor, minimum sparks, consecutive sparks)
1: witch at the farm
2: A velian Epid
3: The cook's presence
4: The flute boy
5: Living a leader
6: Serendia: The glorious History
7: Meister Lomerun

Used them and never got a fail on flute boy since it is used 5th in chain, even if you pick it 3rd.