I have my own Server with with the following specifications (12 Cores CPU, 64 GB
DDR4 RAM, 1.2 TB NVMe Storage & 32TB Monthly Bandwidth @ 10 Gbps)
located in Frankfurt, Germany.
If you'd like I can dedicate a part of that server to you and your
clients/domains/data/websites/mails/etc. and we can discuss the fee
according to your needs, I'll help you with setting up everything and
guide you step by step (because I've went through that pain and know how
much of a hassle it can be to get started) or if you already have the
expertise to do everything on your own I can give you direct access and
you can self-manage from there.
Let me know if you have any questions.
Wish you all the best