Stocking ideas 40g/160l

Hi, my tank is 100x40x40cm, 40"x16"x16".

The water parameters are: pH 7.5, kH 10, gH 15

Constraints: no Bolivian ram, no pelvicachromis/kribensis, no shell dwellers.

What cichlids would you suggest, that could live well with those parameters and tank size, either in pair, group or single exemplar?

Thank you!