Modules

SDC Component Library

https://www.drupal.org/project/sdc_component_library

Provides a component library for SDCs.

CKEditor Media Modal Edit

https://www.drupal.org/project/ckeditor_media_edit

Adds edit button to media in CKEditor, which opens it's edit form in a modal.

Configurable form display mode.

Blazy

https://www.drupal.org/project/blazy

Blazy is a lazy loading library. It's great for sliders or pages with lots of images.

Here are some issues that are worth tracking:

File Upload Options

https://www.drupal.org/project/file_upload_options

Provides options to update/replace existing files when a duplicate filename is uploaded.

Conditional Fields

https://www.drupal.org/project/conditional_fields

Makes it easy to show/hide fields based on conditions in other fields.

Layout Builder Kit

https://www.drupal.org/project/layout_builder_kit

Pre made components for Layout Builder.

Edit Entity

https://www.drupal.org/project/edit_entity

This adds an entity edit link to the toolbar.

Documentation Export

https://www.drupal.org/project/documentation_export

Provides a page to see field info for content types, media, paragraphs, taxonomy, and users. Very helpful to get familiar with a site or plan a redesign or upgrade.

Language None Default

https://www.drupal.org/project/lang_none_default

Sets all entities and fields that have undefined language to the site default.

Inline Block Title Automatic

https://www.drupal.org/project/inline_block_title_automatic

Paragraphs don't need a label, but custom blocks placed in layout builder do. Since you're not always displaying the label this can be an extra step in composing content.