Dracula is a very well-crafted theme, but I can't help feeling like it makes my editor feel like a toy. I've gone a lot of different themes, but the only (dark) one that has worked out for me is everforest [1], with the following modifications:
vim.cmd [[hi Normal guibg=#111111]]
vim.cmd [[hi EndOfBuffer guibg=#111111]]
vim.cmd [[hi StatusLine guifg=#ccdc90]]
vim.cmd [[hi link TSLiteral TSString]]
vim.cmd [[hi TSField guifg=#c4b89b]]
vim.cmd [[hi TSTag gui=italic]]
vim.cmd [[hi TSTagDelimiter guifg=#859289]]
vim.cmd [[hi TSInclude guifg=#d699b6]]
vim.cmd [[hi link TSInclude Purple]]
vim.cmd [[hi link mkdWikiLink TSURI]]
vim.cmd [[hi link mkdWikiLinkStart Blue]]
vim.cmd [[hi link mkdWikiLinkEnd Blue]]
Notable themes I've kinda liked (but had some problems with for various reasons): moonfly and zenburn
[1] https://github.com/sainnhe/everforest