Getting into biking -- choosing between choices
Specific recommendations are off topic here, but my general advice would be to start out looking at the big, ubiquitous brands: Trek, Specialized, Giant, Cannondale etc. that your local bike stores offer. Those are are all 'solid' and dependable brands.

These brands offer a wide range of models at a range of price points. The local bike stores will have a good selection of models and sizes in stock, allowing you good choice and the ability to test ride many bikes to figure out what you want. Bike store staff will be able to give you plenty of good advice on picking a bike. You'll also have good post-purchase support and a good warranty.

If you have local bike stores that offer other brands consider them by all means. The most important thing is to be able to test ride a bunch of bikes to determine the style you want and the size you need.