If you're tired of using the same old phrase "queuing up," then there are plenty of synonyms available for you to mix things up. You could switch it up and say "lining up," "forming a line," or "standing in a queue." Other options include "queueing," "waiting in line," or "getting in line." If you're looking for something more informal, you could try saying "joining the line," "getting in the queue," or "jumping in line." Using different synonyms can add variety and freshness to your language, helping to keep it interesting and engaging for your readers or listeners.