Yeah, I'd highly recommend Return to Dream Land Deluxe, it's easily in the top 3 best Kirby games, and the remake adds a whole new extra campaign.
Star Allies has some issues, so I cannot fully recommend it. The level design is rather bland and easy. The game was made with 4 people in mind, and it is a bit awkward as a single player experience. The game also has some weird performance issues on both Switch 1 and 2, being locked to 30 FPS, but still consistently dropping frames and running very choppily when a lot of objects are on screen.