A bit risky and requires knowledge, but another possibility is to visit a TC schools, and check if they got teachers f l u e n t in ASL, who understand the secrets of bi-bi. My impression with the TC schools in the states is what happens in the classroom depends on the teacher. If the teacher got many students with deaf parents, and perhaps also are deaf, the changes is big the teacher is okayed by people who really can evaluate teachers, and the students are above the average. That's what I call a possibly good place to put your kids.