@OP, use this. If you're not interested in converting your BTC to fiat instantly, then there is no need to use BitPay (other suggested solutions) and pay the fees, etc. Use BTCPayServer and be in full control of your funds by running your own node.
That's nice, do you have an idea how much this service cost?
Sorry to OP. Which among this in the list is the easiest to use and easiest to install in my planned blog. I plan to sell something in my blog but the quantity of the item to be sold is not too many, maybe less than 10 in a month. Is it advisable to use any of those or just use the PM function to discuss the price and mode of payment.
I bet you should be doing some thorough research about this so you can decide what better suit to your blog. Perhaps, pm them.and inquire their services thus use what services you quoted as guidelines then decide afterwards..