

ccTLD are best, as they don’t have a contract with ICANN setting their service. While ICANN tries to be a multi-stakeholder, international organization with broad representation… underneath all the bylaws and process and so on it is a US company incorporated in California.
Probably the TLD of your own country is good!
If you don’t care about that, then either .coffee or .soy for sure. 😉

I use nightly backups. I keep them 2 weeks.
After that I keep a weekly backup for 2 months.
After that I keep a monthly backup for 2 years.
I keep my yearly backups forever.