If you want more, look at the extensions section of the LSP page and then go down the rabbit hole.
I likewise do not use Doom or any of the bundled variants because I want full control and understanding of my config. But those variants are still useful to learn what's out there and selectively add things to your mix.
- An LSP: https://emacs-lsp.github.io/lsp-mode/tutorials/CPP-guide/ - Neotree to browse the file system: https://github.com/jaypei/emacs-neotree - Awesome-tab for tabs: https://github.com/manateelazycat/awesome-tab
If you want more, look at the extensions section of the LSP page and then go down the rabbit hole.
I likewise do not use Doom or any of the bundled variants because I want full control and understanding of my config. But those variants are still useful to learn what's out there and selectively add things to your mix.