An alternative similarly priced option in the DexCom One.
This is also available on line from the manufacturer.
The potential downside is that the minimum package os 3 months worth. This is because it has a separate transmitter which lasts 3 months.
I would recommend taking up the Libre trial and then decide if it suits you. If not, then take up the Dexcom for 3 months.
However, all CGMs have limitations so make sure you take up the trial with your eyes open to these limitations. Otherwise, you will be disappointed, especially if you spend all your time double checking the Libre reading with finger pricks when your levels are in double figures.