I'm a fan of Makeup and Vanity Set and Waveshaper.

Obvious answer for me is the Midnight. They definitely can be a bit over the top at times.

Zone85, gunship, Waveshaper

Com Truise is great

I like FM-84

Scandroid

Magic Sword, VHS Dreams.

As far as artists who primarily make synthwave:
Dance With The Dead, FM-84, Gunship, Lazerhawk, Magic Sword, and Miami Nights 1984
I'm also a big fan of Erang (he mostly makes Dungeon Synth music, but he's got a couple of synthwave albums, namely Anti Future and Songs of Scars

If you like darksynth, Perturbator. His Dangerous Days album slaps.

I'm a big fan of Starcadian.

Mr.Kitty’s Ephemeral album is one of my favorite electronic albums of all time.

Gunship, Perturbator, Capenter Brut, Gost, Makeup and Vanity

Volkor X is one of my favorites.

I really like Kavinsky's latest album Reborn, specifically the song Pulsar.

Pilotpriest, Lazerhawk, Kavinsky is great, too