LTree is a free and open-source theme for Astro. It's a result of exploring how to build a clone of Linkinbio and Linktree, rolled into one, using Astro. Blog post of the entire process here.
LTree
An Astro theme that replicates Linktree and Linkinbio rolled in one. Optional TinaCMS on top.
Other themes to consider
Massively
A is a free, fully responsive HTML5 + CSS3 site template designed by @ajlkn for HTML5 UP and released for free under the Creative Commons license.
Accessible Astro Dashboard
An Accessible Admin Dashboard Theme for Astro with a login page and a dashboard overview. Includes accessibility features such as landmarks, better focus-outline and skip-links navigation.
Accessible Astro Starter
An Accessible Starter Theme for Astro 5+ including accessibility features such as landmarks, better focus-outline and skip-links navigation. Ships with Tailwind 4, Prettier and ESLint support.
AgenceX
A simple agency landing page made with astrojs and tailwindcss.
Andromeda
Andromeda is a multipurpose SaaS landing page theme designed to showcase SaaS products and services.
Art Theme
Beautiful blog template with Astro.