It’s good to bring a client to fiverr but on the other hand make sure you’re not violating the TOS of the other site (freelancer) by bringing your client here.
How do I ensure that I don’t break the TOS?
You can read it from fiverr terms and services - But mainly you need to focus not sharing information of other platforms on fiverr and making payment outside fiver and also not sharing any personal information on fiverr.
As @sirleewho mentioned, it’s great to bring clients to Fiverr. However, the problem may lie with the other platform, since you’re taking potential revenues away from them. If I were you I would read the TOS of the other platform before suggesting that move to your clients.
I meant in the TOS of Freelancer(site) has no issue in taking their clients to another platform. Then you’re good to go. You can bring them here.