Are there any alternative cures other than antibiotics to take for a uti?

Not that work. Alternative cures are a myth. Antibiotics are effective with very few side effects. Drinking plenty of water plus urinating every couple of hours can enhance antibiotic effect. Neither probiotics nor cranberry juice, extract, cocktail or capsules have been shown effective in curing utis. Claims that such supplements are effective are bogus.
Yes. The old use of cranberry has been shown to be effective in some cases. D-mannose can also be very useful. In addition, there are a number of herbal remedies that combine several agents, such as akebia moist heat from health concerns.