I know - it's early. But I'm a little crazy when it comes to planning

DS goes to an integrated pre-K classroom with 3 awesome teachers. 15 kids in the class. Half the kids also get at least 1 type of therapy during the week. DS sees 4 different therapists. So I have at least 7 teacher gifts to consider. Plus his school bus driver/matron.
I always liked just being able to pitch into a group gift but knowing the parents from the class, I don't see it happening - don't think anyone will coordinate it. I am considering coordinating the group gift myself and sending out a letter for it.
When is the right time to send out the letter? Right after Thanksgiving seem OK?
And how would you deal with the therapists gift - since only half the kids see therapists and they see various ones? Should I just skip that?
TIA!!
Re: Teacher holiday gift