Lots of good advice here. I second (fourth?) the idea to ditch the digitakt.
Just in the spirit of offering a differing opinion, save the simple Doepfer-type modules for VCV Rack. Learn their uses there and save your money and the tactile response for more... fun modules. You get more bang for your buck to get some really nice modules that can do more than one thing.
Like a lot of Noise Engineering modules can be used for a bunch of different applications (Basimilus Iteritas Alter, for example, can make really great percussion sounds or be used for bass or noise). Mutable Instruments Plaits is another multi-use sound source (though all MI modules are available on VCV Rack under the brand "Audible Instruments").
I don't like to suggest individual modules but you might want to look at Pamela's New Workout. It is super versatile and you'll probably get one eventually anyway so you might as well get it sooner than later. It is a clock, clock divider/multiplier, LFO, random gate/cv generator, logic, attenuator, etc. It's super useful. Plus it has the MIDI expander and holds time really well, so you can even use it as a master/slave clock for your DT (if you decide to keep it.)
As always, use the forums if you have more questions!