I just started using mods a few days ago and the ones i'm using are Jotunn Backpacks, Equipment and Quick Slots, Unrestricted Portals, Plant Everything and Better Archery.

None of them really any new content to the game, but they made my experience much, much better. They removed much of the tedium and frustration i was having with the game, i was thinking about quiting my 3rd playthrough and these mods helped me trudge on and enjoy the game more.