Ooooh I love suggesting dogs haha
Congrats on the new apartment Sariss!!!
Some dogs that can easily amuse themselves and would be fine while you are at work... and are a little bit different.

Dandie Dinmont Terrier:
They are the sweetest natured dogs, a friend of mine has 2 of them and she also works long hours.

Griffon Bruxellios - Rough Coat (not a fan of the short hair ones)
Also sweet little dogs, they can be a little on the lazy side so perfect for apartments.

Boston Terrier
Can be a little overly energetic but they do get along well with cats, a friend of my moms used to breed them, as well as cats, they all ran together fine.

Shiba Inu
The smaller less agressive version of the Akita.
Unlike Akitas the Shibas weren't bred to fight, they were more companion/hunting dogs so the cats should not be a problem. Energy level is also relatively high but they are happy to be left alone.