sequel pro (which afaik has not been updated since 1928?) could be compared with postico2 as far as native look and feel go - https://eggerapps.at/postico2/
Sequel Pro have been abandoned and lacks support for some newer version of databases, and there is a maintained fork here: https://github.com/Sequel-Ace/Sequel-Ace
never realized sequel pro was open source: https://github.com/sequelpro/sequelpro