I've written in the past about how useful I've found these in learning to control my blood sugar levels without having to take diabetes meds given the increases and spikes we get from steroids.
You can just buy a Libre2 monitor directly from Abbott, the first is free then if you want to continue learning they're about £50 each and each one lasts for 2 weeks. freestyle.abbott/uk-en/home...
Another option is this co who have have various options including support and coaching such as for a monitor and a month of support and coaching for £149 or other options up to 4 monitors and 3 months support. I haven't used them but assume they're legit as I followed a link from the website diabetes.co.uk
diabetes.co.uk/news/2024/oc...
PS there is also a link to a quick Beginners guide to low carb eating on the website