Not sure what you mean by fun read since I'm not sure if you mean "light-hearted" or just good in general even though in some, or a lot of places, places it's sad/etc.. So here are a few suggestions:
Light-hearted:
My Girl (SAHARA Mizu) (Complete, Slice of life/raising a child that's only 5 volumes, though close enough I think
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)
Eyeshield 21 (Complete, American Football manga that is a lot of fun)
Cardcaptor Sakura (Complete, A very good magical girl manga)
Chrno Crusade (Complete, Action Adventure Historical with Demons)
Arakawa Under the Bridge (Complete, living under a bridge)
Muhyo to Rouji no Mahouritsu Soudan Jimusho (Complete, fun Supernatural read)
Sugar Sugar Rune (Complete, witches and fond memories, but I did read this a while ago)
Ookiku Furikabutte (Ongoing, baseball manga that is a lot of fun)
3-gatsu no Lion (Ongoing, shogi player finding a place where he belongs)
Giant Killing (Ongoing, football/soccer manga that's about the coach/team, not the players)
Good in GeneralHellsing (Complete, there are vampires and Nazis)
Oishii Kankei (Complete, cooking manga that I felt was similar to
Ashita no Ou-sama in some ways)
Kaijuu no Kodomo (Complete, very interesting manga about the sea)
Oooku (Ongoing, Historical w/ matriarchy basically)
Piano no Mori (Ongoing, about becoming a world renown pianist)
Capeta (Ongoing scanlation but complete, about kart to f1 racing)
Shoukoku no Altair (Ongoing, Historical with Turkish influence)
Sidooh (Ongoing scanlation but complete, about samurai)
And if you can't find anything more to read in the Asian comic world, try Western webcomics like these (they're fairly long too):
Unsounded (~819 pages)
Trying Human (~751 pages)
Widdershins (~599 pages)
Never Satisfied (~105 pages)
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Must Read Webcomic:
UnsoundedLists:
ReadingCompleteWestern Webcomics