Yes the Shape Feel Fuller for Longer are free as are Danone Activia Fat Free. They are both veggie friendly except for the strawberry flavoured ones which have cochineal as colouring.
Asdas own low fat ones (quite a new range) have a toffee one, and are veggie & free on SW. I THINK Morrisons still do a veggie & free vanilla, but haven't been in for a while. Both are perfect for using in place of mullers.
WW yogs are not veggie friendly. I think that tesco's healthy living yoghurts (similar pot to mullerlight) are gelatin free and they are free, I will be having a look next time I go shopping, I don't know for sure as I normally just eat plain yoghurt.