Nostree is so close to replacing Linktree. They just need to get rid of the user info (just show the links - no one cares about the profile) and boom.

https://nostree.me/npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z/how-to-install-amethyst