Всем по-барабану. (ok)
Всем плевать (also ok)
Всем пофиг (vulgar)
Всем похер. (rude!!)
Всем насрать (very rude)
Всем по*уй (obscene; forbidden in public, you can be arrested in Russia for that according to Статья 20.1 КоАП )

Read https://lurkmore.to/%D0%92%D1%81%D0%...85%D1%83%D0%B9 like Bazil adviced to you.