Looking for good schools in riyadh for my son .

my son will be doing his grade 1 or year 1 in coming  months. can you review me about the following schools.
1)delta international school
2)future window international school
3)learning oasis international school
4)advance learning school
5)swedish international school
6)also any other good schools u know.waiting for ur reply ..thank u.
i gone through all reviews but still confused.today i called british islamic school.they said they dont have seats vacant for grade 1.ais,bis are way to expensive. saud is also expensive but i have kept in the waiting list.manarat is also good.
my son will be doing his grade 1 or year 1 in coming  months.