I do not know firsthand of any game publishers myself, mobile or otherwise. Googling "mobile game publishers" brought up some results, but I have no idea which are decent publishers or not.
I think a publisher could certainly be a viable route, especially if you can land a good deal. I would recommend doing some research though, just so you know what you are looking at. I would suggest looking to see if you can find publishers that have games similar to the one(s) you want to pitch, as they might be more likely to negotiate a deal. I'd also suggest looking at grants/funds where you can pitch you game and potentially get some funding. Again though, I would do some research, as personally I have not looked really into these routes.
Reduz wrote a article on publishing in 2017 that mentions publishers and the road to making a dream game. I remember reading it shortly after it was published and finding it insightful, so it may be worth a look. I glanced through it quickly and it seems to still make sense with what I know now.
