Shamelessly hopping on this bandwagon. Here are some of my current favorites (not an exhaustive list, but I feel it’s likely representative of my usual style).
The feminine list: elegant and pretty, somewhat mythic, regal and stately but with more approachable/down-to-earth nicknames. A bit playful
For the masculine names: less common classics, with an approachable, down-to-earth feel like the nicknames above. These names have a friendly, upbeat sound to me overall! Especially [name_m]Simon[/name_m], [name_u]Wesley[/name_u], [name_u]Rhys[/name_u], [name_u]Rory[/name_u], [name_u]Jamie[/name_u], [name_u]Freddie[/name_u], [name_u]Robin[/name_u]