My current setup consists of a Raspberry Pi 4 with 4gb RAM and a 1tb external SSD. I’m thinking of getting a used mini PC for around 100€ to replace that tho because it would give me a lot more power and especially RAM (I currently need to use an 8gb swap file). My plan so far is to get a used mini PC that’s quiet, has a built-in SSD and at least 8gb of RAM (16 would be better). Because of the built-in SSD, I could also sell the external SSD and buy an 8-12tb HDD instead.

Does anyone have recommendations for what mini PC to get or things that I should look out for?

Edit: Thanks for all the help! I decided on the Firebat T8 Pro Plus with 16gb RAM and 512gb internal storage because that really seems to be perfect for my use case.