English Speaking School Options for Expat 6-yr-old (Bangkok)

Hello, all. Very excited to say that we sold our house in CA and, after about 6 weeks of regional travel, will be settling down in Bangkok sometime in Nov/Dec. My wife and I are both educators and will begin the job hunt shortly after our arrival. Our primary concern is where to send our 6-year-old to school. We are aware of the plethora of excellent international school options, but are a bit concerned about the typical price range of $ Protected content USD per year. In a perfect world, my wife or I (or both) would get hired at an excellent international school and our son's tuition would be waived. In the meantime, while we are pursuing employment, we do not want his education to suffer and would welcome any recommendations or referrals. Our most likely residence would be somewhere in the Upper Sukhumvit area, but we do have flexibility. Thank you all in advance for your time! Looking forward to meeting you all!