well if you're western there are a billion different bridles. My local western tack shops have WALLS AND WALLS of them with whatever fancy trim or color you want, lol. If you're english i've never seen one, but you could always just cut out the browband... you could even buy a cheap western and take the earpiece off and put it on the english if need be. You can also look into special browbands, or look into larger ones. There are replacements that i've seen, most of them with fancy stones on them, but whatever. Some are heart shaped and would not touch the middle of the brow.
Also, if your horse has always had a browband then unless he's grown recently or you changed to a smaller bridle, it might also be a medical thing. If he's sensitive about his ears check to see if they are ok. Also try not to bend the ears when bridling, some horses really hate that and will learn to hate bridling after a while.
Hope this helps, and good luck!