Built a small Chrome extension that lets you assign color labels to X/Twitter accounts so they stand out in your timeline. You can also set a custom display name per account, and one of the colors acts as a "hide", completely removes that account's posts from your feed except when you're on their profile directly.

Supports import/export as JSON so your labels are portable across devices.

Source: https://yukieliot.com/x-account-labeler.php