I found Firefish which is a better alternative to the standard Mastodon application. It's compatible with Mastodon and has better features. It allows users to create web pages and the character limit is 3,000 instead of the 500 on Mastodon. It feels like a good limit for the type of site that it is. Plus this means that it can handle long posts from users on customized Mastodon instances.
Fan of firefish but I will say the main, most popular instance (firefish.social) has been buggy for me for months. Often my feed/notifications won't load, or I have trouble replying to comments. Or I can't react to posts or open up fediverse posts. Real dealbreakers.
I'm going to try a different instance but otherwise I will likely move my acct to Mastodon.