I use la roche posay or child's farm. I bought soltan once (wanted to try something cheaper)and had a really bad experience so now I just stick with the brands I'm sure are good.
We find aldi's baby to be good or Malibu kids every other we have used has caused a reaction
Child’s farm x
I was told by a paediatrician any sun cream that has UVA and UVB protection and 5 star rated is great. I just buy Soltan from boots