Oak leaves / concrete pool / need new auto cleaner

[Tired of vacuuming]

Hi, I have a 6 x 4m concrete pool and an oak tree near the pool. My existing kreepy krawley has finally died after many years of good service. It was handling the oak leaves fine.

Now I need to replace it and am looking for advice from anyone who has a similar situation wrt oak leaves - which brand of automatic cleaner would you recommend (or not)? I want a suction, not pressure one.
Many thanks!