Typically it depends on what kind of lift you want and how much money you can spend. But a good basic kit is the 3-link from suicidedoors.com. If you got the cash get the 5-link though. But if you want a lever setup like the 5-link then you can go with the Kp components 6-link which is good. Or if you got a whole lot of money and don't want to weld then Air Ride Technologies has the roadgrater which is also a 3-link but is completly bolt on.
Then there are the universal kits that are 3-links and 4-links in various positions. Stay away from anything that is reverse though and stay away from 2-links. Pretty much post up want you want to get and you can get an answer on if it's good or not.
We have a 94 Sonoma ext cab 4 cyl we are wanting to V8 and Bag on a budget I’m looking for some advice should I start on the body and bag it first or put a motor in then work on the ext.. looking for opinions and advice thank you