Bitcoin Forum

I'm new to Blockchain technology and I'm not sure what would be the best way and who to approach to help me build a pay platform for my business. Of course I would pay for it.

Go network with people in your location and look for people that you could potentially work with. Looking for people to work with in an online forum with people that could be bajillion miles away from you isn't going to help you that much. A payment platform isn't a business that you could just hire online freelancers to work for you.

If you are talking about payment gateway why not use CMS like WordPress and use BTCpayserver as your payment gateway. It is easy to install and setup and I think you don't need to hire someone to setup up them for you(For safety purposes.)

But If your plan is a custom website you will need to hire a website developer to code it for you.

I have two options if you are going to build a business website with WordPress BTCpayserver (https://btcpayserver.org/) and Blockonomics (https://www.blockonomics.co/merchants)

For another option, you can check them from here below(Self-hosted and hosted payment processors.)
- https://github.com/alexk111/awesome-bitcoin-payment-processors

Be careful with newbies trying to contact you through PM they are most likely scam.

Your request is not very clear. But, if you want to make a product related to the blockchain, and if you are new to both the blockchain and the development, then you should approach this responsibly.
In my opinion, it is better to turn to companies that already have similar projects in their portfolio. You can study local companies or go to freelance resource upwork.com, for example.