The best alternative to the BAT60A is the BAT60A. BAT60A is commonly available at reasonable prices.
Is there is some problem with this that you've decided that we must guess? Is it not available where you are? Where are you? Why is your location not in your UserCP like the rest of us? Where do you shop? Is it in a package that you do not like? What package would you prefer? Is the price wrong?
Are you upgrading a circuit and need a better/bigger/smaller/more costly/cheaper part?