In the 90s, I did own the Genesis version of Sagaia, and the Saturn version of Darius Gaiden. Later on, I played various games in the series via emulation
I recently purchased Dariusburst CS and Cozmic Collection Arcade, digitally, on PS4.
I had never heard of Darius until almost the end of 1989. I was 13 years old, and started picking up gaming magazines from newstands, including Electronic Gaming Monthly. I was anticipating the new 16-bit consoles that summer. Along comes EGM's 1990 Video Games Buyer's Guide around December 1989. It's also EGM issue #5. Looking at their Turbo Champ section and reading about TurboGrafx CD-ROM games coming soon, they show Fighting Street (Street Fighter 1) Monster Lair and this other game, "Darius".
To me, Darius looked really cool, with a big sea monster boss and what looked like detailed ocean waves. All very colorful, even from a single, small screenshot. To me, Darius was the most interesting of the three games they showed. I could tell it was a game like Gradius or R-Type and the recent Thunder Force II for Genesis. I ended up getting a TurboGrafx-16 in 1990 and the CD-ROM attachment in 1991, but I never got to play Darius.
So this is exactly what I saw:

EGM issue #5 - December 1989

https://archive.org/details/Electronic_ ... 9/mode/2up
When I become interested in a game, or a series from the 1980s or 1990s, I always want to read magazine articles (anything, everything) on that. I'll search for every preview, review, etc.
From what I can find, there wasn't very much from American console game magazines on Darius in the late 80s in general, mainly because most of them started in 1988 or 1989 and by that time Darius wasn't brand new. but in the UK, their magazines which started years earlier, regularly reviewed new arcade cabinets. I dug some up, thanks to System16.com
Computer and Video Games, March 1987.

Crash, April 1987

Sigaia, Sega Genesis - EGM, April 1991

Darius III / Gaiden (arcade) - EGM2


Darius Gaiden - Saturn - Diehard Gamefan and EGM



G-Darius - Diehard Gamefan


more to come!