Guidelines of the Swedish supervisory authority
The Swedish Data Protection Authority has issued a practical guideline on how to conduct a Data-Protection-Impact Assessment: https://www.datainspektionen.se/lagar–regler/dataskyddsforordningen/konsekvensbedomningar-och-forhandssamrad/sa-har-gor-man-en-konsekvensbedomning/ (in Swedish)
DPIA list of the Swedish supervisory authority
A list of “high risk” processing activities has been published on the Swedish Data Protection Authority website: https://www.datainspektionen.se/lagar–regler/dataskyddsforordningen/konsekvensbedomningar-och-forhandssamrad/vem-maste-gora-en-konsekvensbedomning/ (in Swedish)