This is where you can use modifier keywords to your advantage. Search terms like “best iPhone chargers” or “top iPhone chargers,” and then take a look at the Google search results. if the searches return a slew of affiliate marketing sites and online stores, then you know this category is saturated and will be harder to rank for.
One of the really useful things you can do with ConvertKit is that you can tag all of the links you include in your emails. This way, you’ll know whenever your subscribers click on them and take action.

Affiliate Program/Associate Program – an arrangement in which an advertiser or merchant pays affiliates for every customer or lead they bring.
The most important thing is to make sure your content is share-worthy. It needs to tackle all the problems your readers struggle with and deliver actionable solutions.