Games

A nice Slice of Life gane I recently enjoyed is Midnight Ramen.

Another I found excellent that might touch closer to Stardew is Potion Permit

Another that can be emotional is Spiritfarer

Monument Valley

I'm currently playing Research Story, that one is pretty cute. There are romances. I don't know about combat since I haven't gotten that far (just a few hours of play); it doesn't really seem like there will be combat, but there could be.

I'd also recommend Apico, Mudborne, Littlewood, or Fields of Mistria. I'm sure I'm missing a ton. I think Steam has "Cute," "Romance," and "Slice of Life" tags if you wanted to browse those on the storefront.

Sable, Supraland.

Melatonin is a sleepy rhythm game. Exact color scheme you're looking for, fun sleepy night time aesthetics. Not exactly in it for the plot

Coral island sounds right up your alley.

Gourdlets.

Try Minami Lane. It's a soft and cozy very light management game. Short and sweet. No romance or pink though.

No Place Like Home?

Transistor

While there are combat aspects of it, you can play the fuck out of Stardew valley without ever even seeing the cave. Definitely slice of life, with open relationship options(open as in mf, mm, ff, makes no difference. Not screwing everyone).

Terraria

I don't know if you'd consider visual novels a game, but even if the 'character' you're playing is a male, the feminine aspects come out really well in Doki Doki Literature Club.