If you do use comparison websites, try all of them as some providers will have deals with a particular website and save you a bit of money.
As mentioned above, don’t go for the cheapest insurer. Make sure you double check what the cover offers. Check excess too as this will most likely vary vendor to vendor.
If you won’t be doing a lot of mileage also consider something like ByMiles. I’m no longer with them as a traditional insurer now works out cheaper for me, but I had ByMiles from when lockdown started and was paying £2-5 for my miles, compared to £30 in prior months with commuting.