I was able to get date of closest Saturday - CodePen
Need help with finding dates of the next seven saturdays. Thank you
function myFunction(x){
var now = new Date();
now.setDate(now.getDate() + (x+(7-now.getDay())) % 7);
document.getElementById("1s").innerHTML = now.getDate() + ' of ' + now.getMonth() + 'th';
}