Does anyone have recommendations for a small energy efficient freezer?

Hiii I’m moving to a one bed apartment soon and it’s a pretty nice one bed overall but the fridge is tiny with no proper freezer in it. I was thinking of buying a small freezer for one person as I did research and it’s not too expensive energy wise. Does anyone have recommendations for a good one?? I don’t wanna spend too much energy wise. Thank you so much! I feel like I would save a lot more by investing in a freezer and stocking up with frozen veggies and meals ( I’m vegetarian) so I’m not tempted to get takeaway after a long day of job. ( starting my first ever job as a doctor so I’m already terrified as is😭)