only good fantasy drama is eternal love so far watched ice fantasy, legend of chusen, journey of flower, sword of legends. I like romance and fantasy currently watching starry night starry sea but I need happy ending is there a good one out there
Novoland is a fantasy drama that has a happy ending... Just watch the alternate ending (ep 29) instead of the last episode (ep 28). It's not as big budgeted as Eternal Love though and definitely not as angsty.
You should also try out Legend of the Condor Heroes (2008) (2017). It's an epic-wuxia style drama with romance and a happy ending. Which remake version is up to you, but I think the 2017 remake is only partially subbed so far, so if you need subs, go for the 2008 version.
Prince of Lan Ling, Palace: Jade Palace Lock Heart, Legend of Fu Yao,. I don't remmeber them having sad endings. Scarlet Heart ending is not happy but I love that drama a lot! (These are 4 of my top 5 Historical dramas, Eternal Love is the other one). Love 020 is not fantasy but I just watched that one and it was very pleasant to watch.