Getting back to Frost, looking around the league, I think the comparable might be Mikael Granlund, who is a grossly underrated player.
Grunland has a similar skill package, 5'10 185, 176 lbs when drafted.
"While scouts have noted his small size at five feet, ten inches, they were impressed with his vision on the ice."
"Granlund, who has a hockey IQ that’s off the charts,"
Granlund got off to a slow start due to a Finnish contract then the NHL lockout, so he really didn't get to play until he was 21.
29, 31, 32 ES points his first three years in more of a 2C/3C role, then he moved up to 1C and put up 45 and 45 at ES and 20 and 19 on the PP.
He has always put up really good E +/- numbers,
First three seasons 1.64 pp/60, Corsi 50.25, CorsiRel +1.52, xGF 53.09, xGFrel +0.99
Next two years 1.97 pp/60, Corsi 49.27, CorsiRel +1.30, xGF 58.9, xGFrel +6.70
Playoffs 1.70 pp/60, Corsi 49.83, CorsiRel +0.88; xGF 54.23, xGFrel +1.83