I just received these last week:
Honbay Straw Cleaner Brushes, nylon bristles stainless steel handle, Nylon Skinny Pipe Tube Cleaner - 20 Piece Value Pack - 7 mm bristles x 175mm long https://www.amazon.com/dp/B01L6AVR0E/ref=cm_sw_r_cp_api_i_bMNODbAJ58EE4
Honestly I wish the bristles were just a bit stiffer, but they’re pretty good.