I recommend using PayPal because they are very well established and don’t have any shady practices like some other popular payment management systems available online.
Stripe is a very popular one, but it’s actually written in their contract that Stripe can withhold payments based on “risk management” and can hold your money for years, without needing to release it to you. Many people use Stripe without issues, but I will not use Stripe because I don’t want to be one of those people waiting for Stripe to payout the $20,000 or more that they owe me just because of a weird clause they invoke often without grounds. Something to consider.
Click the link below and go through the step-by-step process of setting up your business account. It’s worth having a business account through PayPal because then you can send invoices, create pay-pal buttons on your website and eventually link it to Acuity when you start paying for Acuity.