RYK ALGO, the excellent Quad Complex Oscillator Bank. Give your LFOs and Envelopes something to play with.
The Apollo View Allscilator is a "jack of all trades" based on the legendary Curtis chip CEM 3340 and can output an incredible 8(!) waveforms simultaneously.
The Angle Grinder is an analog OTA based quadrature sine wave oscillator, filter and waveshaper.
This product has multiple variants. The options may be chosen on the product pageBeehive from After Later Audio is a smaller version of the legendary Plaits and strikes a good balance between size and playability.
Berlin is a solid digital (numeric) oscillator in and of itself, with pulse and sawtooth outputs and tracking over a vast 20 octaves.
Erica Synths Black VCO2 is an analogue VCO with built in SAW waveshaper and two modulation LFOs.
BRENSO is Frap Tools’ primary analog source of articulated waveforms whose degree of entanglement can be precisely set by the musician.