لسَّلَامُ عَلَيْكُمْ وَرَحْمَةُ اللهِ وَبَرَكَاتُهُ AhsanaAllahu ilaykoum Is it permissible for me to take clips from reliable channels (like Rabbaniyyen or Scholarly sub) and replace their sub with my languages’s? Also, could I remake the videos just taking the audio and translating their sub?

Ustadh AbdulAziz al-Haqqan
Yes, if you are competent enough in translation, and take permission where its owner asks for it.