readingwishes, your question may have your answer: “I’m prone to redness, rosacea and my skin can become blotchy if I use products that are harsh even natural ones.”
You could buy the Andalou Naturals Get Started Kit – Sensitive. Even better would be for you to wait until Priceline or Nourished Life has the set on sale:
https://www.nourishedlife.com.au/skincare-moisturiser/78252/andalou-naturals-get-started-kit-sensitive.html
Nourished Life has reviews which might help you decide upon products you are thinking about getting, but what causes a reaction in one person may/may not cause a reaction with your skin. Nourished Life has other brands that might suit your skin better such as Pai which are designed for sensitive skin:
https://www.nourishedlife.com.au/brand/pai-skincare.html
https://www.paiskincare.com.au/
I also recommend Adore Beauty’s customer service for product recommendations:
https://www.adorebeauty.com.au/
Sukin has products for people with sensitive skin. Someone I know that has extremely reactive skin (not rosacea) has had success with some of the following products:
Natural Skincare for Sensitive Skin