Relaxing music to listen to while you sit in Twilight's Library and read some books:
https://youtu.be/7BChpqiO4hc

Romance:
https://ponepaste.org/404 (A Dubious Welcome)
https://pastebin.com/qcq7tr5H (Who's a pretty Pony C1)
https://pastebin.com/QHZ4Vuce (Who's a pretty Pony C2)
https://pastebin.com/w8mrsc7Q (Who's a pretty Pony C3)
https://pastebin.com/aPd5MQE6 (Starwatching with Twilight)
https://pastebin.com/249CpHiM (Morning After)
https://pastebin.com/kNqfaY5t (Cuddling Twilight)
https://pastebin.com/ubqtjt9a (Love Bites)
https://pastebin.com/8pFuGCDT (Snowy Night)
https://pastebin.com/xw6YZm2g (AnonXTwi Oneshot)
https://www.fimfiction.net/story/449974/the-real-you
https://www.fimfiction.net/story/450365/i-love-you (sequel to the real you)
https://www.fimfiction.net/story/512099/always-by-your-side (unfinished)
https://www.fimfiction.net/story/503960/a-midnight-heart-to-heart
https://www.fimfiction.net/story/487659/1/the-simplicity
https://www.fimfiction.net/story/489039/sudden
https://www.fimfiction.net/story/270283/under-the-stars
https://www.fimfiction.net/story/494846/1/hold-me/rainy-days
https://www.fimfiction.net/story/447551/of-twilights-and-true-love
https://www.fimfiction.net/story/411797/growing-pain
https://www.fimfiction.net/story/348094/6/stories-from-the-nightly-twilight-thread/culture-shock
https://www.fimfiction.net/story/457545/follows-a-little-spark
https://www.fimfiction.net/story/383880/love-of-the-librarian
https://www.fimfiction.net/story/89868/a-few-moments-with-twilight (dead)
https://www.fimfiction.net/story/90499/the-princess-and-the-human (dead)
https://www.fimfiction.net/story/216402/twilights-world (dead)

Friendshipping:
https://www.fimfiction.net/story/481807/1/equestrias-favorite-princess
https://www.fimfiction.net/story/475263/you-woke-up-next-to-a-dork
https://www.fimfiction.net/story/434077/1/act-in-haste
https://www.fimfiction.net/story/438819/1/another-favour
https://www.fimfiction.net/story/451550/paranormal-activity
https://www.fimfiction.net/story/480181/youll-never-walk-alone
https://www.fimfiction.net/story/427394/anon-the-therapist
https://www.fimfiction.net/story/373699/ponies-dont-understand-drifting
https://www.fimfiction.net/story/464950/a-dearth-of-nuance

Other:
https://www.fimfiction.net/story/374916/how-does-she-do-it (short, marecel twilight)
https://www.fimfiction.net/story/171911/take-two (incomplete, dark, time travel)
https://www.fimfiction.net/story/57026/ascend (comedy, alternative twilicorn)
https://www.fimfiction.net/story/67362/hard-reset (dark, adventure)
https://www.fimfiction.net/story/13565/naked-singularity (short, comedy)
https://www.fimfiction.net/story/87627/purple-prose-or-a-night-at-the-clopera (short, comedy)
https://www.fimfiction.net/story/91302/twilights-dollhouse (dark, immortality)
https://www.fimfiction.net/story/141549/the-celestia-code (adventure)
https://www.fimfiction.net/story/437468/the-virgin-princess (dark, short, immortality)
https://www.fimfiction.net/story/326887/1/sunset-shimmers-alliterative-adventure-into-pony-princess-perversity (short, comedy)
https://www.fimfiction.net/story/437813/scootaloo-gets-a-twilight-lecture (short, marecel twilight)
https://www.fimfiction.net/story/442877/twilight-is-awarded-for-porn (short, comedy)

Wholesome Greens from previous Threads:
Finding Twilight in a field behind your house: https://desuarchive.org/mlp/thread/38863652/#q38907638
Twilight Dreams: https://desuarchive.org/mlp/thread/39095064/#q39125066
Unicorn MILF Twi: https://desuarchive.org/mlp/thread/39095064/#q39160648

Comfy Twiggles Asmr:
https://www.youtube.com/playlist?list=PLYetaRLw6_prPdTt8bP0bOK4tVvl4s9gj