A better picture would help, but I'd tentatively guess another Trichocereus.

Amigo, you show us a lot of juvenile plants - many of them are difficult to identify when they're juvenile and haven't flowered, so that's why it's difficult to say exactly what it is.

Cactusmcharris is right...It's sometimes difficult to tell what you have when it's small. What is the age of your cactus? The question is whether it will grow into a tall tubular cactus or remain short & rounded.

I have Echinopsis (??Oxygona...Easter Lily Barrel Cactus?? - Can anyone confirm?) that looks like that. Here it is in all it's stages. The larger plants are about 4 years old and have set off at least 200 pups...The more pups you remove, the more pups they grow!

The one that looks like just a pot full of pups is actually the base of the one behind it...I cut it in half because it was 8" tall with an hourglass figure.