Heidi is the best gui for mysql/mariadb. It's really great and I don't change it with anything when i need to work on mysql servers.

Unfortunately it's not that good on postgres or ms sql server. Feels more buggy and slow for these databases but I'm not sure if it's Heidi or the db drivers.

I'm also one of the people that used heidi on Linux with wine (along with notepad++) so a native version is more than welcome!