I find consult-ripgrep to be excellent for this.

The first link gives me 404, seems like they are now a fourth part series:

https://sachachua.com/blog/2014/06/read-lisp-tweak-emacs-beginner-14-try-emacs-lisp/

https://sachachua.com/blog/2014/06/read-lisp-tweak-emacs-beginner-24-understand-emacs-lisp-code/

https://sachachua.com/blog/2014/06/read-lisp-tweak-emacs-beginner-34-can-make-things-convenient/

https://sachachua.com/blog/2014/06/read-lisp-tweak-emacs-beginner-44-can-add-features-deal-errors/

I just like to have a clean ibuffer :)

After done with magit I want all magit buffers killed so that I can have a clean buffer list.

This configuration only buries the magit buffer which may or may not be what you want, I prefer to actually kill the buffer so this is what I use instead:

(use-package magit
    :preface (defun my/magit-kill-buffers ()
                 "Restore window configuration and kill all Magit buffers."
                 (interactive)
                 (let ((buffers (magit-mode-get-buffers)))
                     (magit-restore-window-configuration)
                     (mapc #'kill-buffer buffers)))
    :bind (:map magit-status-mode-map
                ("q" . #'my/magit-kill-buffers)
                ("C-x k" . #'my/magit-kill-buffers))
    :custom ((magit-display-buffer-function 'magit-display-buffer-same-window-except-diff-v1)
             (git-commit-summary-max-length 50)
             (magit-diff-refine-hunk t) ; show granular diffs in selected hunk.
             (magit-save-repository-buffers nil)
             (magit-define-global-key-bindings nil)))

If you are using corfu, I had a similar issue and the fix is below:

(advice-add 'eglot-completion-at-point :around #'cape-wrap-buster)
(advice-add 'eglot-completion-at-point :around #'cape-wrap-noninterruptible)