Content Warnings
Potential spoilers ahead.
I don't know what your specific triggers are if you have them or have firsthand knowledge of many kinds of circumstances that may cause people to find certain elements upsetting or triggering, so this is obviously an incomplete list, but I'm doing my best. Read at your own risk. "Backstory" means things that happened before the story starts and aren't described in much detail. If they are described in detail (ie: a flashback), then they won't be labeled "backstory" even if they technically happened prior to the beginning of the story. If you have questions about the content of any particular story, feel free to ask me about them.
The Scab Collector: abusive relationship, estranged parents, assault, biphobia, character death???, death of sibling (backstory), depression, gender dysphoria, gore, hallucination, incest mention, manipulation, self-harm mention, sexual assault, suicide mention, suicide attempt (backstory)
The Cult of Rohesia: alcoholism, arson (backstory), child neglect, death of parent (backstory), death of partner (backstory), depression, dubious consent, explicit sex, panic attacks, parent gets arrested and imprisoned, parent with dementia, suicidal ideation, vomiting
Two Imaginary Boys: arson, character death, death of parent, house fire, human sacrifice, implied homophobia, vomiting
Burning from the Inside: death of parent (backstory), house fire
Evidene of the Paranormal: death of parent (backstory), house fire (backstory), implied homophobia