Usually the higher the GSM (grams per square meter) rating the more fluffy and absorbent the towels will be. I usually go with 700+ GSM towels on a minimum for myself. Usually if you can find a higher GSM towel by a reputable manufacturer you should be good to go. High quality materials definitely make a big difference in absorbency and softness as well, so that’s always something to keep in mind. Also the way the towels are stitched, dyed, and put together can be a good indicator of how durable they will be long term.