Male MC, mainly harem (polygamy), monogamous romance if the characters are good and MC isn't a wimp and some slice of life (with romance). A common trait is probably gonna be the MC being Male and at least somewhat straightforward; there might be some rare cases where I can brush over him being a little dense (only in romance) if theres something else in the story like training and a leveling system and him working hard but then the heroine(s) carry the romance until he comes around even if just in a subtle way. Most probably no tragedy