You didn't mention a budget (monthly or tolerance for one-time expenses).
I just copy everything to HDDs using a Plugable USB-C/SATA dock (nicer and far more reliable IMO than those $9 dongles you see around). I then put the drives in a Turtle HDD case for padding against environmental factors. That protects me against everything except house fire/theft/tornado sucking up the case and dropping it in another state.
My backup needs are beyond any single drive, but at 23 TiB you don't have to purge much to fit on a single hard drive...there are 20 and 22 TB models for sale.
I'd buy a drive WAY larger than 6 TiB just in case you underestimated how much you actually want to save. Having the extra space would also allow you to incorporate error-correction techniques like generating PAR2 files (I did that with some emotionally-important personal files).
I just copy everything to HDDs using a Plugable USB-C/SATA dock (nicer and far more reliable IMO than those $9 dongles you see around). I then put the drives in a Turtle HDD case for padding against environmental factors. That protects me against everything except house fire/theft/tornado sucking up the case and dropping it in another state.
My backup needs are beyond any single drive, but at 23 TiB you don't have to purge much to fit on a single hard drive...there are 20 and 22 TB models for sale.
I'd buy a drive WAY larger than 6 TiB just in case you underestimated how much you actually want to save. Having the extra space would also allow you to incorporate error-correction techniques like generating PAR2 files (I did that with some emotionally-important personal files).