[muffinman26]

For me it's a mix of:

1. News sites with book reviews. I read Vox's book critic reviews for a while, as well as my local paper's book review section. Definitely better for fiction or current events than other non-fiction.

2. Asking the people working at the bookstore. I'm consistently surprised by the breadth of book recommendations bookstore employees can give. Even asking for something incredibly specific (like "young adult fiction featuring a trans male protagonist" or "modern fantasy takes on mythologies other than Greek or Norse") usually yields a few interesting results. Again, better for fiction than technical non-fiction.

3. Friends, newsletters, and podcasts.

4. Wandering around bookstores, especially boutiques, and thumbing through the books on display. This still yields mostly new releases, but stretches me outside my comfort zone. I found both Paddling Your Own Canoe by Nick Offerman (entertaining) and Breathing Fire: Female Inmate Firefighters on the Front Lines by Jaime Lowe (well-researched non-fiction) this way.