The Springfield Echelon is, in many ways, an improvement over the Glock. I’ve got a couple of Glock 17s, and a few 19s, in 9mm. I’ve got several S&W 3rd generation 9mm and a couple of 1911s in 9mm.
It would help if I knew for what purpose you wanted the gun.
For a future collectible classic, with fine craftsmanship and outstanding durability, the S&W 3rd Generation. Better than that, for collectibility, though with a worse trigger, might be a genuine High Power.
For target shooting, it’s hard to beat the crisp trigger, and low recoil, of a 1911 in 9mm.
For all around uses, including, perhaps, concealed carry, along with great parts support, the G19 is a great choice.
For a dedicated carry gun, the SiG P365XL is about perfect. Very concealable, 12+1 capacity, red dot options.
For a duty sized gun, with 17+1 capacity, and ready for optics, with a nice trigger, and great customization options, the Echelon.