I mentioned using a 2nd OT earlier but should also have said that these days I have a Rytm MK1 & MPC one that cover drum duties. I really love the Rytm, there’s something very satisfying about tweaking analogue sounds & the limitations of the top 8 pads/engines means you end up being creative with the noise engine & filter which is a lot of fun. You also have the dual VCO for the bottom pads which is a sophisticated analog mono synth. I don’t use samples on it that much, but it does also have that capability which can be mixed with the analog engine. It’s without a doubt my favourite Elektron most of the time.
The MPC drum engine is also very good & sophisticated but not as much fun to edit, but I like using both, they are very different experiences as the MPC is much more a DAW like sequencer & you have note repeat which is great for getting interesting velocity hits or ghost hits. The drum engine has a full 8 part engine, or each drum type has its own instrument too so you could fill all 8 instrument slots with the individual engines if you wanted. On top of that you would still have 128 program slots for kits, each of which can have 128 samples assigned with an (almost) 1GB of Ram. The MPC is capable of so much more than this, but it could very easily be setup like I described using the OT earlier, using a permanent drum machine template. I do use the sample chains on it, however the way to use them is to split them into a kit so the hits are across the pads.
IMO if you can get into the workflow, the MPC One is an unbelievable bargain, I’ve seen them going for £450 on eBay recently. The MPC system is a bit quirky if you haven’t used the concept before but it pretty much is 128 midi tracks & external racks if you are familiar with that concept, & then Sequences can either be song parts or complete tracks that all have their own 128 midi tracks & have access to the same ‘racks.’ I did actually replace my OT with the MPC a few years ago, I’d been using OTs for years & felt like a change, but the OT would still be a good partner to an MPC, they have very different takes on samples.