You asked
What lenses should I buy for the sony a7 iv?
The a7 IV takes a huge range of Sony E lenses, so the best pick depends on what you shoot. If you don't have a particular subject in mind, start with one everyday zoom. The Sony FE 24-70mm f/2.8 GM II covers most situations, from street to travel to portraits, and it's the lens I'd reach for first.
For wide landscapes and interiors, add the Sony FE 16-35mm f/2.8 GM II. For sport, wildlife, or anything you can't get close to, the Sony FE 70-200mm f/2.8 GM OSS II is the one to save up for. Tell me what you like to photograph and I can narrow this down.
Written by Claude from this site's pages.