generaly speaking there all over.
Mad Scientist Mod
and
Distant stars
are two mods i suggest, there are SEVERAL others across this forum, and learning to mod the game is relativly user friendly and easy if you got the pacients.
Note: assuming the mod loader in the normal sins did not change like it did in entrenchment, go to options, mods, and click on show mod path to see what that path is. after that, copy that path down, open internet explorer and type that path in on the address line and it should take you there. after getting to the mod folder, install the mod by extracting these to it. if you encounter any problems refer to the mod pages for updates and theres a thred about V1.14 of sins if you cant get it to work that might help you.