Children clothes (Belcher)

I have 3 Girls a 7-8 yr old a 6 yr old and a 4 yr old AND I have 3 boys a 8-9 yr old a 2-3 yr old and a 3 month old No they are not all biologically mine but I love them as if they were biologically mine but however I’m needing some clothes for my children if at all Possible girls sizes are as follows (oldest to youngest) size 7-8 and size between 5-6 & 7-8 (depending how is made) and also 3T-4T and then the boys also oldest to youngest 7-8 and then 2T-3T and last but not least newborn-0-3 months