Skip the 37 and get the 25 or the 27...... the 58/59 is good too. I don't like the 37, it goes too high in the field of view, unless you are shooting a 50, you don't need that much most of the time.
The spotters with Horus reticle, are pretty much the H25...... not exact match, but close enough.
Here are some pics - first a H27, in a 3x17 USO
Then a loopy spotter - those gongs are at 1750 yards, at last light, with a crappy phone:
Can't find the H37 pic, maybe later? Haven't taken one of the H58 yet, but there are several on the site here.
Nothing against the TMR, have some, the Horus isn't for everyone, if you like it, great, if not, there are lots of reticles to choose from.