Hi! :) What kind of rabbit snacks can I give my rabbits?

I love giving my rabbits (holland lops) small slices of baby carrots, but I found out that it is not healthy. What kind of healthy snacks can I give my rabbits? I feed them western timothy hay, Lapins pellets and a small amount of dried veggies, but the brand of the veggies is in Japanese. Sometimes I also feed them rabbit biscuits. Yup, they absolutely are pampered. :) Thanks for your help :)