Sublime thread!
So, I think you're a bit more after the melodic and a bit trancy side of the old progressive (like Human Blue) - not after the kind of "hard bangers" that I posted in the other thread ... sure I could come with some Patara or Hatikwa now, but "imma keep the flow" of your conversation:
Of the old ones, I can throw in 12 Moons and Matenda:
and of the newer ones, I can recommend you the upbeat side of Solar Fields:
Fun fact: all three of these artists have an ambient side. 12 Moons = Healer, Matenda = Chilling Matenda, Solar Fields = Solar Fields