I'm thinking of having a build with an SSD and a mechanical hard drive to avoid painfully long windows load times. (Windows being on the SSD of course) I already have an SSD but its only 60GB and I use it to store games that I want to load fast. For a new mechanical drive I'm thinking of something from seagate that I won't have to switch out for a long time.
(something like these depending on how much money I have after I have a nice PC)
https://www.amazon.co.uk/dp/B01LXRWWB6?tag=ps-uk-seagate-01-21&th=1 <-- 2TB
https://www.amazon.co.uk/dp/B01M09TPP4?tag=ps-uk-seagate-01-21&th=1 <-- 3TB
https://www.amazon.co.uk/dp/B01LXCE9W9?tag=ps-uk-seagate-01-21&th=1 <-- 4TB
https://www.amazon.co.uk/dp/B01LXO31IZ?tag=ps-uk-seagate-01-21&th=1 <-- 5TB