ambient could be the genre for you.

Steve "Coldcut" Reich ?  Back in the day, electronic would sometimes refer to how the music was made.  Making music in a home studio really blossomed during this time, for a moderate sum of money people could make their own music in the way they like and cut out record company investment and influence. Not just in a club/dancefloor style of music, but with anyone who wanted to get creative.  If it was good independant labels would licence it for release or take on the act to the label giving them creative freedom and a platform to get noticed to a level where major commercial labels buy in.

BTW Electro is a genre in itself, along with ambient, downtempo and chilled. Tends to be dancefloor music is Electro.

Listen Here vvvvvv

Youtube Video

+1 for
Massive Attack - Mezzanine (I wouldn't call it chilled though)
Air - Moon Safari

Yeah, I know that some people believe that Mezzanine is more like a background music for having sex, but I have listened to it while writing bc it let me focus and relax at the same time.  

The Orb can be relaxing. They can also not be relaxing.

Vapourwave is a thing. There's a band called something like 2142. It is too close to nothing for my liking but is electronic and is relaxing. Possibly too relaxing.

One band I would recommend to you is port-royal. They are only vaguely describable. I would say they are chilled electronic with a bit of a post-rock vibe. Flares is the best album I think but the rest are good. (not heard No Ware something or other, their latest)

You should also check out some soundtracks.

Stars In The Lid could be up your street. Again it depends on what you want from your music. The Tired Sounds Of and & The Definement Of Their Decline is music I would recommend if you want to sleep. Max Richter's Sleep is what you really want for that though. The full version. I think it's 8 hours and is designed to sleep to.

+1 for
Massive Attack - Mezzanine (I wouldn't call it chilled though)
Air - Moon Safari
Aphex Twin - Selected Ambient Works 2 (the original is a bit of a slog)

And, sorry but I love it, Lorde. South Park has so much to answer to!! Ya Ya Ya I am Lorde.

So I wouldn't recommend any of his other albums, and there are some more spooky and sinister tracks on this album that I'd avoid, but there's some really great chill music too, I often listen to this on my way home from work, the first track always makes me feel happy.

'Howl' - Rival Consoles
Some nice pure ambient, although a bit too melancholy for some.

'4' - Boozoo Bajou

Some nice electronic jazz fusion, sounds like a movie soundtrack for a spy thriller.

'Pure Heroine' - Lorde

Yeah I know, top 40, sellout, pop is trash, whatever. This is a solid, down tempo album, stripped of any excess, and with a great performance by her. One of the best debut albums in recent memory.

I guess it would have to be considered as an "oldie" having come out over 30 years ago!

A timeless piece, and today, still one of my all-time, ultimate favorite “slow jams”–in my opinion, this particular version (of the four or so the group has) being the best!

Video…

Youtube Video

1) https://www.youtube.com/watch?v=99myH1orbs4

Artist: Air.
Album: Moon Safari.
Year: 1998.

2) https://www.youtube.com/watch?v=ROrte4MMnrE

Artist: Massive Attack.
Album: Mezzanine.
Year: 1998.

Enjoy and relaaaax, dude

Nick Warren's Paris Mix

As someone who is also pretty clueless about the majority of "electronic music", and someone who can't differentiate between the majority of micro-genres and self-indulgent, post-internet pop-up/flavor-of-the-month electronic music fads (all the millennial Macbook electronica I hear these days just sounds like poor imitations of old Richard D. James/Boards of Canada stuff to my ears), I can't hold a conversation about much of this stuff, but experience has shown me that, for all of its variation, "ambient" music generally lends itself to relaxation, meditation and/or introspection (as opposed to rump-shaking). I'm not saying that all ambient music is "light" or "relaxing". It can be made to sound very sad/moody, or even malevolent, but at its most basic, it's (generally electronic) music that provides atmosphere and allows your mind drift. I tend to like music that seems to have some emotional depth. Stuff that evokes bittersweet nostalgia and a sense of dreamy surrealism in equal measure. The way I interpret it, what I enjoy best is not "light/happy", per se, but it's good "lie in bed in the dark and stare at the ceiling and wonder where it all went wrong" music, I think, and that's basically how I "relax".

Technically a DnB track, but it has a very trippy, icy, nocturnal vibe that I find very reminiscent of being under the influence of certain synthetic dissociative substances. Might be good for relaxation: https://www.youtube.com/watch?v=KjrjbDOI5pI

A couple of other artists (also not "ambient" in the strictest sense of labeling) that immediately come to mind for me are Hex (this one) and Mono Junk:
https://www.youtube.com/watch?v=aQGBQ2BMQ28
Youtube Video

If you're open to Hip-Hop (which is something I know even less about), some of it can also be very relaxing and otherworldly: https://www.youtube.com/watch?v=alNEJmGoMvk

You might also find something you like in the world of shoegaze and dreampop (some of which is heavily electronic in nature, but not generally so): https://www.youtube.com/watch?v=tYerbroPX34

Another (mostly synth-based) artist worth checking out is Tor Lundvall: https://www.youtube.com/watch?v=k4cfyI4fdHg