I use carlebach's yachad yachad
And also what is now known as the chabadsker niggun
Ugh, the infamous 'Chabadsker Niggun' which was basically stolen from Lubavitch and litvish-fied. The fact that it has the name 'Chabadsker' is of little comfort as the song is still stolen; but moreover, even the term 'Chabadsker' itself is never used by Lubavitch.
/rant