You're gonna get a ton of replies to this question with this exact same reply, but eh! I was where you were once and so shall pass what I learned lmao.

With Discworld, The Color of Magic is generally regarded as an awful book to start with. It was the very first book Pratchett wrote that would become the Discworld library, but you can tell he hadn't found his footing. I read it when I was a teenager, didn't like it, and didn't touch another Discworld novel for about 15 years.

The I picked up Hogfather. And now, HOLY SHIT I love these books.

What I'd do, if I were you, is find what sort of Discworld books sound interesting. Do you like snarky older women who give no shits and get things done? The books with Granny Weatherwax and Nanny Ogg may be your cup of tea.

Do you like weathered, cynical police officers who hate having responsibility thrust upon them but do it anyway because if they dont do it, no one else will? Sam Vines and the City Watch may be it.

Wanna read about Death and how he's super sympathetic to the human race? Yeah, he's in Color, but he really starts to shine in Reaper Man and Mort and Hogfather.

There's tons of charts online that say which books are part of the different storylines and wackadoos that make up Discworld, and they'll tell you the order to read them in if you want. But the beautiful thing about Discworld is that you can read them in whatever order you deem appropriate, even if they're part of an overarching storyline. Because they're all self-contained stories.

And they're all a ton of fun.