If you are looking into hosting a BBS in the cloud I recommend synchronetbbs.org. They have the knowledge and great support around BBS'es to get you going.
Jan Espen Pedersen, https://dasan.no
Please enter information on the form below to process subscription for Synchronet Plus Plan With Backup.
What is the name of your BBS (Human Readable)
What host name do you want for your BBS? It will be accessed as .synchronetbbs.org unless you have your own domain.
Enter the description for what your BBS is about - used in synchronet BBS list
If you will have a custom domain, enter it here. Otherwise your host will be in the *.synchronetbbs.org domain
What is the theme of your BBS? ie: Amiga, gaming, politics, etc...
This selects whether you want incoming email to go to the BBS and therefore BBS users, or should it go to the servers email handler.
Do you want me to install all BBSLink doors?
Do you want me to install the DoorParty doors? This requires me to register with the provider so give me a day or so to set it up...
Install the Donation feature? This lets you collect donations from visitors to your site.
Do you want the links feature installed? This lets you list other websites at the bottom of all the website pages and optionally collect funds from people who add their website.
If you want the donation features, please supply a valid PayPal address. If you don't want these features enter "none".
Do you want me to set your BBS up in Telnet BBS Guide?
Do you want to be notified when someone downloads a file from your website (not BBS). Can be a dozen or so emails a day, but recommended so you know your website is being used...
Do you want the default slideshow on your website?
Do you want the live chat feature on your website?
Do you want additional languages enabled on your website?
Do you want your BBS to be linked to Gamenet? A Gaming network for BBS's.
Do you want your BBS joined to WeedNet?
Do you want your BBS joined to Retronet Neo?
Where do you want your server hosted?