With kitten fur, its fragile. So start off with a fine-toothed comb - a small flea comb would be great at this age. Train the kitten to stand on a small table and be combed. Brushes will not so a thing for long hairs - combs are the best. As the kitten grows (and gets more coat) you can add a medium-toothed comb.
Make it a routine. A combing every day and by the time your kitten is 6-12 months old, he/she should be pretty cooperative. The belly is the hardest so save it for last. Train to stand on two back legs while you do the tummy.
If you establish a grooming routine now, you won't have problems in the future.
BTW we need pictures of your kitten