After reading  The Pen is a Sword: The Blood Books on AO3 by A_Being_Of_Violet_Fire not long after reading several Eureka fics this came up

= Harry & Percy forming a solid friendship and eventual relationship behind everyone backs, as the overlooked ones, that leads to them fully escaping wizarding europe, after draining the Potter/Black vaults/properties of everything valuable, for the Magical/Supernatural/Intellectual sanctuary of Eureka

Both gain full asylum/citizenship, new Identities, tailored in-depth magical & mundane education, medical & healing, weekly therapy{not Barlow}, purification ritual, their secret dream jobs{opposite expectations}, true friend/brother/dad in Nathan Stark, birthrights, makeovers...

Eventually they have three sons together{mpreg or surrogates or adoption} that don't get subjected to the Dursley or Weasley version of parenting{abuse, overbearing, neglect or comparing kids}

Harry ends up forming a solid friendship with Jack Carter when he arrives in town, helping him adjust, stay sane & keep his secrets - Keeps him sane after Percy dies the year before