Hello! I am trying to find a site where I can watch doramas without subtitles, or with Japanese subtitles. Even Japanese sites are fine. Thank you very much! ^_^

Here a site with japanese subs from 2009 to today ; http://jpsubbers.web44.net/Japanese-Subtitles/@Mai...
The RAWs can be taken on https://nyaa.si/ but I don't think that old dramas (1 year and more) will have sources...
There are also legal sites such as Netflix, Crunchyroll, Viki where you can disable subtitles.

Pandora TV is a good source to watch older Japanese dramas. Some dramas either have Korean subtitles or no subtitle at all. To look for videos, you'd better use Google, though, because its in-build search engine is, frankly, shit. Hulu also has a selection of new Japanese dramas, I think.