If you’re staying in hostels, you’ll want a towel.  

If you do pack a towel for hostels, make sure it is a quick drying pack towel
or quick drying microfiber towel.

do you have any suggestion for where to pick up a good towel for traveling?

The camping section of a sporting goods store or big box discount store will have them as do the specialty travel stores.  There are similar towels in the auto supply section for drying your car.

However, I prefer a regular towel.

with the small microfibers you may want to bring two.  Walmart usually sells them in the camping section.  Maybe try it at home and see if it gets you dry enough. 

u should bring one as it most hostels ( if they even offer them) will charge u for it like 2-3 euros to rent. i brought mine and it kinda sucked cuz it didnt dry fast and i think i did laundry like 4 times during our 6 week trip so ya it gets dirty. i say def bring one. it will save u valuable euros u can spend on drinks with all the super cool people u will meet.
 
cody

It really comes down to personal preference, but the best choices are—in my opinion—either a microfiber travel towel or a thin cotton towel. I’ve tried both, but prefer cotton; hang it up and it dries overnight, or in the sun (in warmer weather) and it’ll be dry in about an hour.

Yeah, I hate the microfiber, prefer thin cotton. You can find them at Walmart for 2-3 bucks.