I use Wix for mine, and SumUp for payment processing.
Wix is super easy to use, and seem to have addons/options for everything.
SumUp are the best I could find in terms of costs, but my primary use is physical card machine payments rather than purely online, so there might be better out there for digital sales.
One thing I would say, do not go with WorldPay, they are absolute cowboys with loads of hidden charges.