Which churches/denominations teach about spiritual spouses and marine spirits?

I have recently learned about certain Christians who teach about demonic "spiritual spouses" (usually a succubus/incubus) and "marine spirits ” (also demonic, and spiritual spouses may be from them). Which denominations teach this exactly (it seems it are certain Protestants, probably Evangelicals) and what is Catholic exorcists' stance on this? Are spiritual spouses and marine spirits real? Are the Nephilim offspring of these beings?