While I have my own tanks and plans for courses, I want to know what everyone's favourite fish/inverts are?

Apologies, I ended up getting busy, but have found myself with some free time, and want to work on the courses I mentioned in the post. I know I'm not a large community yet, but still want input, so should I do a small, follow up maintenance course next, or a betta-specific guide?

Now that the set-up course is done (though will likely be edited over time) the natural follow up is a small and easy maintenance guide based on maintaining the tank I recommend in the set-up alongside general tips to keep it cheap and easy. I also plan on making a betta guide, and as I'll be busy for a bit, hopefully within the next week that will be up! Any requests for fish or tank guides?

While I work on my initial tank set-up guide, part of my focus will be on maintenance and affordability. I enjoy my set-ups the most when they require minimal product and maintenance, and will include ways to improve water quality, fish health, plant health, etc that don't just rely on chemicals, products, and constant top ups of artificial materials. Fishkeeping can be expensive, but done right with these guides it'll be one of your cheapest hobbies!

If you're interested in anything specific just let me know and I'll do my best to set it up. My plan for a first course, however, is to do a step-by-step guide on setting up your first tank, regardless of size or stock, and going through the basics from understanding requirements for whatever fish you will get to filters, heaters, and the nitrogen cycle. Essentially, this will be a course on everything a beginner should get to know! It will be based on my personal fish-keeping experience as well as research and secondary sources (some of which are my inspirations for this.) I aim to have this course up tomorrow. Thank you!