As for true top swimmers. Where they will sleep at night at the water line. The options are limited. Pink tail chalceus, apollo sharks, and very few more on the medium size. Silver aro gets too big, and African butterfly and Hatchet characins too small.
For me. My middle swimmers is a distchidous sexfaciatus and silver datnoid. I too had a 14" pearsei cichlid just as jaws7777 and DMD123. But the desire to always want food was too much cichlid for me. For cichlid options. It'll be a fun 'in, out, or stay experiment' as you go along.