from comments seems like kobo is right answer. i can also endorse i have both kindle nd kobo, things are simple with kobo

thank you.

behind a paywall

you need a completion plugin. I am using blink.cmp its great also lsp-signature plugin for signature help

try marksman or markdown-oxide lsp i used to use markdown-oxide with obsidian worked great, ive ditched obsidian now and solely use nvim+markdown-oxide.