This is not a question that we can answer for you, since this decision will depend specifically on your needs, the objectives of your bug bounty program, your budget and many more variables that only you know. However, what we can do is tell you some of the things you should have when choosing it because there are multiple bug bounty platforms on the market like hackerone, intigriti, yeswehack, synack, yogosha, cobalt, epic bounties  among others. So in order to choose, you could take into account the following factors.
For example you can validate the customers who use it or have used it, review their comments and the rating they have given it; review the list of hunters subscribed to the platform, their position in the ranking, vulnerabilities found and their location; and last but not least, the costs and bug bounty plans what it offers, if it charges monthly fee, if it has annual plans or if it only charges for vulnerabilities found.
Customers love Bug Bounty because it makes sure that they are only paying for the value they receive and compared to other security systems it has lower ‘cost per vulnerability’. Likewise, having the best qualified hunters in the market, who are paid fairly and in a timely manner, is very important because it generates confidence in the entire process. Keep in mind that all you need is a trusted partner, and you’re good to go.