I'm very happy with my
OPTlaser PD3000-RGB for ~$800. The case and 3W RGB module are good build quality with low beam divergence and the DT-40 galvos are far better than el cheapo no-names on ebay or aliexpress. However, those cheap products are fine for lumia projectors.
TBH, I haven't done a side-by-side comparison with Saturn nor Compact 504's (which others highly recommend), but I'm not interested in line animations.
Another important consideration is which control software and ILDA DAC to use. Both need to be compatible.
I started by following the leading laserists, which was LSX software ($200-$300)with Etherdream3 DACs ($200 per projector). Unfortunately, I've experienced little or no after sales support for both. LSX failed to ship the licensing dongle I had ordered and that stopped me from upgrading from Basic to Advanced. The ED3s lose signals.
Depends upon your objective(s). If you are only going to have one projector, or daisy-chain multiple projectors, that have the same image, then Neon Captain's Radiator was designed by one of the best laserists in the business, Christopher Short. He has several YT videos demonstrating the Radiator.
But, if you're planning on going professional and needing to independently control multiple images, then Beyond with external FB4 DACs is your best route, IMHO. You can still use the less expensive OPT DP3000-RGB projectors.
Hope this helps
😎