Re:
DBR vs Torus.
You can kill two bikes with one rock with the one.
Place both at the top of the pile.
Get yourself trained to actually bother to get to both of them, first and second from top and switching around helps.
(that's your real problem I see).
Then go out and ride them both, just do it, ride off the road and have some fun. Get Bing OS maps and Strava to see where new there is to ride, with strava you hit the make a route and turn on the heat maps for an area, look for the faint lined routes ones as they can be interesting, hidden jems.
See who is near you that likes a good ride.
Keep riding them both and see which just feels right.
Keep thst one, get rid of the other...
which at that point it might not matter as you are out riding as intended and then just build in your spare time when riding is not possible.
It's not about projects, it's not about the bike. It's about bothering to ride (this weather does not help mind). It's also about being able and just having to bother to move the bikes around to ride them. So make that easy if the hassle of unlocking, taking them out the shed and rotating them around is too much ;-)
But use the same comparison principle as you ride them and get rid of the one that do not feel right, the same as you slowly finish a project.
Remember, the bike is just a name on some metal, ignore the brand when it comes to getting rid. DBR is not better than the Torus if the Torus rides better for you.
But yes do get rid of the ones you do not like to ride or cannot see yourself riding.
While you are at it
Look at getting a shed like the the Asgard 29er *you can get 6 bikes in these and storage at the end and bits and bobs on shelves. It's easy to pull the bikes out once you have figured a nice way to lay them in and security is better than most sheds and garages.
Ok they cost ~450 quid, but that's nothing in the scheme of the bikes you have. The sale of a few of them or parts will buy you it.