Okay first off allow me to say I HATE Krillin x 18 because Krillin is not someone I wanted to see paired >_>
Canon wise I ship Gohan & Videl because you can see the love and he's actually there for his family. Goku & Chi Chi was great back in the early days of Dragonball even thought it felt rushed and for none canon pairings I'd love to see Raditz paired with Launch because why not... He's Goku's brother and should have had a much larger role.
I always hate on krillin for some reason.. He's just so hateable XD my absolute favorite pairing has to be gohan x videl, thats goals man favorite couple XD about raditz I always hoped they would bring him back somehow but it looks like it will never happen xD