A new and very ambitious project is taking place with a central repository that is home for other repositories as well. The StreamAddons Repo is a main repository for other repositories and developers of KODI 3rd party addons. Currently there are only some repositories but it seems to grow everyday and it is also a perfect timing since TVAddons has gone offline.
For the time being you can find the Stream Army Repo, Brettus Repository, Rockcrusher Repository, Simtech Repository but since it is a very fresh project it can only grow more. Definitely to keep an eye on!