Hello!
I can suggest our ColorDRIVE one (if needed without TEC). They are only 55,50€ and have a lot of featuers (Onboard DCDC for the diode, differential input, enable functions,... and a modulations frequency of 1,2MHz analogue!)
https://www.live-lasersystems.at/d/colordrive-one.php
We can offer also diode sleeves with collimators where you can mount the diodes and easy collimate them:
https://www.live-lasersystems.at/d/sparrow-mechanical---optical-accessories.html
There we have also small OEM modules where you can mount the dioes (with back PCB) and for example building a small mount to add for fibre coupling.
If you want a OEM build without soldering, or just want to easy build a experimental setup, we have a lot different, cheap addons, like a "Control Box" - with this no external modulation signal is needed, but you can use it too and switch between "on with power regulation via potentiometer" or external modulation input.
https://www.live-lasersystems.at/d/sparrow-electronic-accessories.html
Please ask if you have any questions!
BR
Phillip