Are tabs as a pattern good for mobile design?
Tab bars are a great alternative to a hamburger menu for mobile design, especially when you have a limited amount of high priority navigation options. They usually appear as a static bar at the bottom or top of the screen with either an icon or label for each tab.
What can I use instead of tabs?
If they're too long, then accordions are a better choice rather than tabs! Accordions placed on a horizontal space have too much space to accommodate long options and plenty of data, while on tabs if you choose long names as labels, they will look more or less like accordions only!