The disposable SMS sites haven’t worked so far, will I just have to buy some?
Is it worth using those services? Do you need them for your professional work life? If no, you should consider ditching them. Instagram can be used without an account if you want to check few profiles anyway.
I need it for an OSINT hobby
Then you have to have the resources to isolate properly. A complete ecosystem with a separate SIM every week and whatnot, if you are going to have Facebook and Instagram.
You only need a SIM to register the account, you don’t need to renew/change it every week :)
For avoiding detection and bans against scraping media, you should change your phone number.
I’m not sure changing phone very often helps avoid “detection”. I heard so as well, but i doubt this “breach” is gonna stay open very long, because it’s very trivial to check how often you change phone number which could trigger a flag for account review.
I meant making a fresh account with new phone numbers, and not associating new phone numbers with same account. There can be no history for an account review in that case, since there is a fresh slate each time.