Off Topic Productions

Neither Reddit coins nor a Reddit paid membership can buy you karma, and explicitly asking for upvotes is discouraged. If a service claims to let you buy Reddit karma, it's likely a scam. And even if it could earn you karma, it would likely go against Reddit's terms of service and get you banned from the platform

Which Reddit accounts are the most effective? I would like to be a member of this platform.

Reddit accounts with high karma are the most effective. By using such an account, you become a valued member of the community. To increase your karma, you must post useful material. The more interesting and valuable information you post, the higher your karma is. Conversely, if you often post unnecessary material, your karma score goes down. You can buy the account with high karma and be an active member of the Reddit community. This way, you'll share quality content, and you can absorb useful information to develop your business.