@didnt1able
If you don't want to selfhost with pi (its recommended) you can use disroot.org cloud witch uses Nextcloud and has all implementations of it (calendar, contacts, tasks etc). You get 4GB and e-mail witch can use PGP keys for encryption of e-mails. Disroot is legit alternative imo, and GDPR compliant.
@ben_dw

@didnt1able
It is, they don't implement their own encryption like Tutanota or Protonmail, but there is IMAP option so you can use Thunderbird for example to do encryption of e-mails with PGP if you are too lazy to do it manually. We can argue now if that if that is better than other e-mail providers which use their own encryption but I'm not expert to judge that.
@ben_dw

@didnt1able
True
@ben_dw

@nikolal So would I have to buy https://shop.syncloud.org/index.php?route=product/product&product_id=42 or would just buying a raspberry pi work? Thank you for walking me through this!

@ben_dw
No, if you are not experienced with Linux I recommend you to use disroot.org, but if you want to dive into problematics if setting up home server here is good guide that will walk you through it.
https://pimylifeup.com/raspberry-pi-nextcloud-server/

@nikolal Thank you so so much! So I should only get a raspberry pi and set it up on my external hard drive basically?

@ben_dw
You set up external drive on pi, yes. You should get pi 4 because of usb 3.0, you may need it for good write speed

@nikolal I did hours of bad searching and you gave me a clear path forward in almost no time. I am very grateful — thank you!