There are a ton of options out there for lifting your Ram. Some things to think about before doing anything.
1. How do you drive/use your Ram. Pavement, dirt, both, etc. Tow or haul often.
2. Are you looking for just the look or to add some performance handling capabilities.
3. Direct replacement upgrades (3" & under) or (4" & higher) turns into brackets, possible cutting the frame and so on.
4. Keep stock wheels/tires or go aftermarket.
5. Budget.
We all can help spend your $$$ and give real world advice once you have a better idea of the outcome you want to achieve.