Tokyo Disney Hotels - Oct 2019

[Short legs]

Hoping to book the Disneyland hotel (as a 1st choice however will happily stay in the other 3) for 2 nights end of October 2019. Going mid-week so hopefully will help with the booking/crowds but I may be wrong! I know I can't book just yet and I have to be quick when they are released but I am after some advice please... I've found some other hotels available to book for my dates (Hilton for example) where it says 'only 3 rooms left!' I'm not normally pressured into booking something as I know this can be a marketing trick however I have found decent hotels in Japan (within our budget for 3 people) difficult to come by!
Would you wait and see if we can book one of the Disney hotels or book one of the other 'official' hotels now? I'm worried there will be nothing left for our dates
Which other 'official' hotels would you recommend? Also has anyone been end of October before and is it very busy?
THANKS!