These days there are a lot of article rewriting softwares and it is pretty hard to choose one that will suit all your needs (quality + price – no subscription at least). When you will look for example at WordAI article spinner – you will notice that there is pretty expensive subscription (50 dollars per month) while spinnerchief costs only 77 dollars per year (which is about $6.5 per month).
4. Tier 2 content (content that is keyword rich and relevant to your niche. Doesn’t have to be all that readable, it just has to be indexable by a search engine.)– Here put same options as with the Tier 1 content situation with the only difference that you set the 1st input to “Regular.” It is important that lower tiers have a lower quality of content compared to upper tiers.