Ok here you go, hope this helps.
Dramaday.me - Very good but they have link shortners.
Onlykdrama.com - My go to if a show is available in there. Direct link without any shortners.
Minidrama.net - You will find some drama that you can't find elsewhere, uses link shortners.
Dramaday.online - Another ddl Site. Mainly for variety shows.
Sinflix - A rentry with a lot of dramas with multiup links.
kdramahood - You will have to download each episode seperately but it isn't ad filled.