Cat companion for dog?

[pinkorchid1]

Does anyone here have a dog and a cat and are they good companions for each other?
I have a 3 year old dog and I worry that she's a little bored and could do with a friend. I'm home most of the time so she's not lonely, but I worry that with a busy home life with 2 children, she doesn't get the attention she deserves. (She gets regular walks).
Another dog would be a more obvious choice and am not ruling it out, but our dog has such an amazing temperament, I am concerned another dog wouldn't be as great ! I am considering a cat instead. Can they be companions for each other or would they just live independent of each other in the same house?

The 2 that my cat has liked ignore her, of the 2 dogs we have now, she likes the one that leaves her alone unless she approaches him and dislikes the one that would like to be her friend.

The previous one she liked was a foster that had clearly lived with much tougher cats than she is and he wouldn’t look at her, she took to him the quickest she’s ever taken to anything 🤣