I would normally have no difficulty in planting acers at this time of year
Mind you, they are warning us about the 'coldest winter' for years ????
My own 'group' plantings were designed to give a mix of colour in autumn splendour
Is this what you have in mind?
If it is ... Senkaki for yellow, Okagami for scarlet, Osakasuki for crimson, Seiryu and Flavenscens for orange/yellow, Garnet for bright red (or Crimson Queen or Inabe Shidare) ... the last 3 also being low laceleafs so balancing the planting well during the year
I also planted a Butterfly to retain a bit of variegated green. really just a matter of choice I suppose