#RSS Feeds are great to follow #Webpages. You can also follow Fedi Channels/Accounts by RSS.
By #Masto you just put an " .rss " an the end of the Channeladresse like
http://serverdomain.tld/@Channel-Nickname.rss
By #Friendica it goes like this:
http://serverdomain.tld/feed/Channel-Nickname
the #Hubzilla CMS provides for every Channel many different kinds of RSS Feeds
http://serverdomain.tld/feed/Channel-Nickname
will give you ToplevelPosts + Commends + Likes
http://serverdomain.tld/feed/Channel-Nickname?f=&top=1
will give you just ToplevelPosts
http://serverdomain.tld/feed/Channel-Nickname?f&cat=
will give you just ToplevelPosts from a specific category depending of what you put at the end of ?f&cat= - like for the category "Fediverse" :
http://serverdomain.tld/feed/Channel-Nickname?f&cat=Fediverse
EDIT:
By #Diaspora you will find the RSS Feed for a channel like this:
http://serverdomain.tld/public/Channel-Nickname.atom
this may be an way to follower diaspora channels from masto - if you can import rss feeds with an extra tool..
Friendica and Hubzilla have a builtin support for following also RSS Feeds !