You should not download new & shiny stuff here. Itch is infested with malware. On any given day there are dozens of new uploaded malware projects. There is always a time frame for the malware to be visible and unquarantined. Longest I saw was two years. Several over half a year. And a lot with several weeks.
Stick to browser games and pages with a lot of followers (1000+) plus comments.
If you want to see "good" and "bad" games, select a metric and look at the top and bottom end. Though the bottom end might just be obscure and not bad.
Itch has a lot of tags. You can write in any tag you like. You are not restricted to the suggestion list. So if you are interested in games about a certain topic, just try, if some people use it as a tag.
Some jams have interesting games, as those are as indie as it gets. https://itch.io/jams/past