Depends on what you want. To make a good weighted rope first you should get your work dress on and go buy some chain. Ill hold your purse. just kidding. But no really, chain is key IF you are down with the weighted ropes.
That being said I would avoid weighted ropes unless you are in some strange weighted jump rope competition. BECAUSE, weighted ropes only slow your speed down and teach you to be slower. Instead of weighing it down (I used to do) learn to work it faster and get more movements in such as doubles, triples, crossovers and single leg work. You will get more of the benefits of jump rope out of faster lighter ropes with bearings.
The weighted ones will give you a hell of a burning sensation in the wrists and shoulders but not much else. You can develop grip strength in better ways. there is really little advantage to weight in jump ropes but there are innumerable advantages to the speed you can develop.
Get a Buddy lee rope. I got one and ill never go back. It’s actually too fast for me and I can;t jump fast enough to keep doubles going but I can for triples. Go figure