Depends on the niche itself. There is a certain "default" for every niche, that Google considers normal. Some niches are spammy and you can get away with keyword stuffing, because that's the default, some niches aren't like that. Always good to check what your competition is doing in this regard.
This is the old guide from @phpbuilt if you want to give it a shot. https://www.dropbox.com/s/oc4qrj6vu5ay571/PHPBUILT Onsite SEO Guide.pdf?dl=0
Idk man but I see websites ranking #1 without EM keyword phrase mentioned even once.hey
When Google is now giving priority to more natural and high-quality content so should I still be worried about kW density?
If yes what will be the ideal kW density?
copy paste atleast give credit to the source https://www.shoutmeloud.com/keyword-density-seo.html1 t0 3% of keyword density along with semantic keywords & LSI keywords with quality of unique content is good.
copy paste atleast give credit to the source https://www.shoutmeloud.com/keyword-density-seo.html
Ask for a guest post just for commenting on BHW and that too not written by him sounds like a unique approach lolOr even directly quote and no-follow the links; then just ask for inclusion in a guest-post or some 'ish later.