CrossCode! A modern topdown action RPG with gorgeous pixel art, great music and Zelda-like puzzles in dungeons. The full version is available for PC, PS4, Xbox One and Switch and there is a demo that you can play in your browser.

Disclaimer: I’m friends with some of the devs but I would still recommend it if I wasn’t.

Baba is You - simplistic graphically, but immensely satisfying mechanically. Amazing puzzle game.

Celeste - gorgeous graphics and buttery smooth controls, a platformer that is encouraging and supportive all the way through but ranges from “easy as pie” to “hard as nails” as you progress. One of the most satisfying games to complete every level for. One of the best soundtracks ever. Trans rights!

Fez - another simple-ish at face value platformer game, but this time with puzzles as the main thread instead of action. Super satisfying puzzles and an amazing soundtrack.

Omori - an RPG which eventually deals with some heavy subject matter but does so tastefully and maturely. It’s a splendid story either way you spin it, and lots of fun.

Undertale - same as above, but shorter and more “punchy”. One of the best soundtracks in gaming, and a cast of characters you’ll come to feel like your family. It’s quite subversive for the genre, so it’s a fun experience. It has an episodic sister game Deltarune which is still in the works.

Void Stranger - a block-pushing styled game, but incredibly subversive for the genre. Gorgeous visuals, great soundtrack, and some truly mindbending puzzles. It gets super hard, but it’s also super satisfying to beat.

Stardew Valley - cozy farming game, really just oozing passion and love from the developer(s). Lots to do, many unique people to meet and things to see. Pretty graphics and stunning soundtrack. Fall in love with an NPC, marry them if you want. Or don’t do any of that. Make your own fun in this one, there’s a bunch of aspects to get into.

Citizen Sleeper - not technically 2d but may as well be. A gripping, beautiful sci-fi story, told in a tabletop RPG style. You won’t be able to help falling in love with the rag-tag character cast, and shedding a few tears along the way. It’s very down to earth but makes me long for the stars at the same time.

Ori and the Blind Forest/Ori and the Will of the Wisps - a drop dead gorgeous, lovingly crafted metroidvania with one of the best soundtracks you could ever ask for. Platforming is gorgeously refined, and the sequel improves upon the first game in many ways.

Hollow Knight - I could copy paste the majority of the Ori blurb here, however this game has a deeper focus on the deep, winding, sprawling exploration, and combat aspects. Gripping soundtrack and stunning stylised visuals. You will, however, join the wait for Silksong with the rest of us, which drives many people mad!

Sundered is a cool 2D metroidvania / action rogue lite blend.
Absolutely gorgeous artstyle, unique concept…

Loop Hero is another rogue lite, that has a bit more of a management feel to it. The hero traverses the loop (the level) automatically - you just get to change their equipment and the environment. It’s a cool balancing act between making a tough level with synergetic enemy types/tiles and making sure your hero survives.

Hollow Knight - if you like metroidvanias you probably know that one. It’s incredibly popular! amazing game.

Dead Cells - same basically :) 50% off on steam right now!

Edit: Seems like you’re looking for retro/emulation stuff mostly? I might be misunderstanding your comments.
These recommendation all have Switch and PC versions. No clue how well they would run on yuzu

Terraria. It has RPG elements and is simply fantastic. Often available at a discount on Steam which I only recommend due to the extensive content available via the Workshop.

Hyper light drifter

Have you played Dead Cells? It’s a great metroidvania

Hollow Knight

/edit: SteamWorld Dig 1 & 2 are also very good metroidvanias.

Bahamut Lagoon is a cool JRPG for the SNES that sadly never was released for the west. You can get your hands on the ROM and some fan translation though. I’ve played it many years ago, so my memory’s a bit iffy, but I do remember having a good time.

Front Mission is another good JRPG entry from the 90’s. I loved the SNES version, but apparently the DS version boasts extra features and content, making it the superior choice.

I liked Metroid Dread a lot. I feel like it’s a good starting point for Metroidvanias too because the game does a good job nudging you in the right direction e.g. by closing off certain areas but still letting you explore and figure out where to go. I especially enjoyed the movement, it feels very fluid and satisfying.

The only major issue I had with the game was that performance is really bad in a few encounters. Most of the time it runs fine though. It’s also not super long. I prefer a game that doesn’t overstay its welcome, but if you’re looking for something that is good value for money in terms of playtime there might be better options.

Hollow Knight and blasphemous are a couple of great metroidvanias and also a pretty good challenge.

If you like Pokemon, check out cassette beasts. Or one of hundreds of Pokemon mods.

Been just thinking about one of my favorite SNES era games – Illusion of Gaia. If you’re doing emulation, highly recommend. I’m in the process of picking up a SNES and functioning cart to play it myself for the first time in a decade.

Axiom Verge 1 is a great metroidvania. I also tried 2, but it didn’t click with me at all. Cave Story is great as well. Dead Cells, but that’s more of a rogue lite game. Binding of Isaac is also one of my favorites, but it’s a top down rogue like.

Ghost 1.0 It’s an indie game much in the style of older games, and it’s made with love

Obligatory short list of great old school RPGs:

Fallout 1 & 2

Baldur’s Gate 1 & 2

Icewind Dale

Planescape Torment

(I think Neverwinter Nights belongs on the list as well, but I can’t attest to it as I’ve never played it.)

You can pick up most of them from GOG.COM for cheap.

There should be enough to keep you occupied for a while.