It’s obvious that many of the respondents here have never owned the devices in question.
LWTS - yes, it’s still very capable. Collimation is usually very good. Image isn’t as good as the UTM-X. Expect to pay 4500
UTM - most are not collimated (do not consider this an option)
UTM-X - there are several iterations. Some iterations have better collimation than others. If you find one you’re considering, pm me and I’ll let you know what version you’re looking at. Many of these are EXCELLENT still today. Expect to pay 4500-5500 for a fully collimated one.
CNVD-T - in 2025 I’d avoid 320 units but they can do the job in a pinch.
Those dogging on the Wilcox flip to side mounts for supposedly not returning to zero have no clue what they’re talking about. The WHOLE POINT of a collimated clip on is that the clip on isn’t affected by slight misalignment

. I’ve used that mount under every condition you will encounter, and intentionally induced misalignment… it doesn’t affect anything at all if you’re using a collimated thermal as a clip on. I shoot tiny little groups with mine, which wouldn’t be possible if there was any truth to this.
If you’re using the thermal with its own reticle or you’re using a “zero the screen” type imitation clip on, you may have a problem, but this is a discussion about clip ons in clip on configuration.
Now, there are about 4 guys on the Hide with the budget for the range finding version of the Voodoo-M. There may be moments where the Wilcox mount could affect their disturbed reticle placement… so if you’re one of those 4, you can discuss the Wilcox mount. If you’re not, and you think it affects your point of impact, you don’t understand what collimation means, and haven’t tested what you’re saying with a precision rifle. Regardless, the OP is considering clip ons that wouldn’t be affected by this.
I have actually owned each of the devices we’re discussing here and used/tested them thoroughly.
The Wilcox mount is absolutely fantastic.
The UTM-X (if you choose the right generation) is the best bang for the buck and is absolutely still among the better performers. Its image is nearly identical to the $16,000 current issue Voodoo-S.
Voodoo-S - way above your current price point. Basically a UTM-X but much smaller and lighter.