The hunt for Add-ons! suggestions?

[Scientist]

ok so i've done the usual checking out every mod listed on curse / kerbalstuff / etc i find

i like mods that expand playability without ruining career mode

like TAC Life Support and keepfit are great

i dislike godmode / overpowering mods

basicly anything that starts a 'why use this old thing now that i have this mod?' is a nono

creating fuels out of thin air is a nono, you get the idea

that said, some mods might be great but have 1 tiny bad thing giving free fuel etc

science containers is nice, but i had to remember the generators giving free fuel

so my mod list so far, anything you can suggest would be nice

environment add-ons:

chatter

connected living

deadly re entry

first person eva

kerbquake

TAC Life Support

keepfit

sciencey toys/parts add-ons:

dmagic orbital science

habitat pack

KAS

kerbal dust experiment

kethane (you work for the fuel, and it ins't overpowering)

rover science

scansat

science container

spaceplane plus (just added, exploring it later)

station parts expansion

station science

goals add-ons:

fineprint

mission control

final frontier

seriousbusiness