Harry became very close to Dennis Creevey after the war
Head canon #47
Harry always felt guilty about the way he had treated Colin in school, so he reached out to Dennis in an effort to ease his guilty conscience. Although his brother’s death had sobered him, Dennis was still an extremely upbeat and optimistic person and he was easily one of the coolest people Harry had ever met - he took up photography in Colin’s honour and once he left school he became a photographer and sketch artist for wizarding action novels. Whenever he and Harry hung out together he often asked Harry to re-enact his adventures so he could capture Harry’s movements. Dennis was so much fun, in fact, that Harry, Ron, Neville and George agreed it wasn’t worth having a monthly ‘Boys Night’ unless Dennis was there.