we have used ABA for dd2. not officially dx'd with anything, but not quite NT, and has some very strong traits.
we used our consultant (since we were on a home programme anyway) for general advice - dd2's issues are all around emotional regulation, control and social stuff. so completely the opposite of what we were used to doing on our programme, since that had always centred on dd1's immediate SALT and academic needs (with social thrown in, obv, but not the whole focus, as dd1 is social anyway, she just doesn't have the skills she needs)
we also went to see Growing Minds last year. this was mostly to deal with dd2 and her hold on the family overall - again, her controlling nature, coupled with soem big emotional regulation issues, was making daily life very difficult for us all.
we didn't get given a programme as such - dd2 was then in pre-school, and dd1 at ABA school, but we did get a lot of info on how to handle her needs (which, if left unchecked, we had strong feelings would start to become a real problem once EYFS was over, and the child-led play (so often mishandled, and was in her case too) came to an end...).
GM an expensive exercise, though - don't think they have any conferences coming up over here, so it would be a trip to Florida... helped us enormously, and dd2 nicely on track for now (with ongoing input and support for social/emotional needs)