Hello, in my opinion the best thing is real phone numbers. I spoke with a relative who lives in the United States and used numbers that he bought in a store with very cheap phones.
I used this option and it worked for me, before I used an internet number and they don't work.
I recommend real numbers
you always take numbers of providers with millions of customers , the same applies to bank accounts and credit cards as well because no company like ebay and amazon would dare mass block people for use of such providers due to too many customers using them