Octopus Energy is a great service with cheaper prices (may vary depending on area) and there are free voucher codes each week fora variety of things such as a free drink from Greggs or cafe Nero. There is also free electricity sessions or saving sessions!
On top of that if you use a referral code it gives you £50 credit!
https://share.octopus.energy/onyx-rook-490
With the cost of living and people struggling more with winter I thought I'd share.