Trail of the Behemoth, by Dan Felder & Seamus Allen, is great for players who love tactical combat, as your characters engage gigantic monsters in combat, then use the pieces of the titans' corpses as upgrades: it feels a little bit like Monster Hunter in that regard.

Autumn of Giants, by Melody Saturn, is a collaborative storytelling game inspired by Fall of Magic, Shadow of the Colossus, and The Last Guardian, about humans guiding and protecting a Colossus on the way to rest and shelter for the winter. I like how calm it feels in juxtaposition to other games.

Ryne, by @furtiveshambles.bsky.social, is a game about communities traveling and caring for each-other in a world composed of gigantic creatures, landscapes that might shift the world around you when you least expect it.

The Wilsea, by @felixisaacs.bsky.social, has leviathan creatures roaming through a verdant post-apocalypse, where gigantic plants have overtaken the lands. You might co-exist with these leviathans, but you might also hunt them.

Facing the Titan, by @gulix.bsky.social is a gm-less zero-prep oneshot-style game that feels deeply inspired by Shadow of the Colossus. I've heard a lot of really positive reviews about this one!

24XX Goliath, by JD of Brick Road Games, is a mecha vs leviathan game that uses Jason Tocci's 24XX system, which is great for short sessions with simplified rules.

@noroadhome.itch.io has two games that feel like they fit: there's Oldhome: Children Chasing Giants, and Oldhome: Trip to Turtle City, which both take place in a world where people live on the backs of colossal creatures. Both feel like games about connection, and a place you can call home.

For solo games that have actual game elements and great graphic design as well, I'd recommend the Miru series by @hinokodo.com . There's 3 in total...so far.
hinokodo.itch.io/miru-an-anal...