Clean up Sd card Help.

[GamerGoddess28]

So i had Tiramisu upgraded to Aurora

i want to clean up my sd card and get rid of anything that is not nesessary i do wnat to keep all my emulators tho. how would i know what to delete and what i need to keep? also withing my wiiu folder what should i keep that is nesessary to aroma? do i need anything under the modules?
WiiU
environments
aroma
modules

on the root of my sd card i have

apps
fceugx
install
not64
private
Retroarch
shaders_slang
snes9xgx
vbagx
wads
wudump
genplus_wii.dol
info.json
installer.log
keys.bin
manifest.install
nincfg.bin
not64.dol
not64.gci
NUSspli.txt
screen1.png
version.json
wuphaxBackup.app