Hey mama! Honestly, Marikina has quite a few Montessori options kaya you're in a good area, a few of us have kids in different schools doon and it really depends on your vibe, budget, at commute. Best move talaga is to visit a few schools personally, observe the classrooms, at makipag-usap sa teachers, kasi ang approach nila varies and kailangan mo makita kung comfortable ang son mo sa environment. Dm me if you want names ng schools na tried ng friends ko, happy to share!