I suggest getting your total arrow wieght to at least 500grs.(Trad rule of thumb, 8 to 10 grs of arrow weight per poundage shooting. this isnt concrete but a good start.)
I am assuming you are using 125gr field points. are you getting good flight with those FPs?
carbon shafts have a tendency to fly stiff out of trad bows. have you tried any 145gr FPs? I know they are hard to find but can be found. they may fly better and add weight at the same time.
ok, back to 125gr heads. I suggest to find a good quality, cut on contact type with replaceable blades. since mechanical heads take more energy to open and penetrate, I dont suggest using those, especially with your poundage.
some heads have chisel points that may or may not be sharp. you will need the point to be sharp.
just going thru a catalog that I have I see several good choices.
Simmons Sharks have several good choices.
Magus Stingers are another good choice.
Muzzy Phantoms
Thunderheads
several manufactures make solid heads that you can resharpen and have screw-in models.
go to a local shop and check with the owners on what is availble.
expand your search to include mail order supplers that cater to the trad shooters and see what choices they offer. a good number of their heads can be purchased elsewhere. get the best your budget will allow.
after re-reading my post, I know it doesnt seem to help much but you are getting a early start to help weed out your choices. keep your poundage in mind when you check the heads out. if you see a head you like but not sure about, throw the question out on here and get opinions.