There may be a few options with the same style as the HW45 but also worth remembering the 45 can be half cocked to give lower power. Obviously the HW75 is the closest thing but maybe look at a Fas 6004 and also the Sig ASP super target. Another idea may be the Gamo compact or PR45. As I say few to choose from and all with good sights and target capability’s but really if you like the HW45 probably get that as it’s a great pistol.