All documents can be stored on your computer’s hard drive or a USB stick rather than in the Microsoft cloud. The other is to transition to Libre Office, an open-source and free to use office suite, the team maintaining Libre Office is not based in the US and therefore is at least theoretically not subject to SESTA or FOSTA. Again, all documents would have to be saved to a hard drive or USB stick, there isn’t a cloud service with Libre Office.

There are a couple of Chinese based open-source word processing options but China’s laws against sex are even more strict than the new US laws (and backdoors for Chinese government agencies are required for even non-cloud based use, using any Chinese based program would give the Chinese government a backdoor to search your computer — this has come up recently with Huawei phones) so I would suggest not using them for this purpose.

A related note, as for distribution of your erotic works via Amazon Kindle (I have bought a couple of them), you will have to ask them at this point. I will do a search on their site for any changes having to do with SESTA and FOSTA but I haven’t run across anything so far. You really need to speak to an appropriately specialized attorney before the law goes into effect (apparently on May 1), that might be the best use of $500 or $1000 you ever spend considering this is your livelihood. Here is the Amazon Kindle Self Publishing TOS: https://amzn.to/2aS02a4 .

As for Discord I will have to ask my gamer nephew whether he uses it and if he does, how well it works for him and his friends.

https://reason.com/blog/2018/04/02/reason-roundup

http://blog.skyprivate.com/skype-banning-accounts-sesta-protect-account-skyprivate/