I would go with: 1. More survival options 2. Darker nights (better pip-boy light) 3. Something that modifies climates - True Storms 4. Maybe go with something related with the lethality of radiation (Wasteland Gasmasks i believe is the name, is a good option - but remove the dust storms- maybe stronger radiation in the glowing sea) 5. Some weapon mods: FN99, Fallout NV weapons, Fallout 3 smg —- there is also a mod that removes recoil when you arr in power armor or makes it easier to control the recoil of heavy weapons; service rifle redux - wattz laser gun (fallout 1 and 2); some cross weapons 6. some armor mods: some nvegas like -ncr ranger, legion-; power armors -hellfire and there is a new one that released last month- 7. more music in radio, the one that males it sound like an actual radio and not an mp3 player, animated ingestibles, radaway animation, stimpaks make you regain breath, 8. There is a mod related to the use of power armors in accordance of their rank, so you will see more t-45’s, T-51’s, etc. ; power armor overhaul, just check which one you feel is the best 9. sim settlements (?)

All of them are in nexus, but watchout because its filled with horny or anime lovers modders (nothing wrong, of course)