There are certainly lot of choices online. Epiphone, SX, Harley Benton, Squier, Reverend, Cort, and many others, all brands with very good beginner offerings. I am partial to Epiphones and Squiers since those are what I started with and they have very well-built guitars based on iconic designs for very reasonable prices. Unlike many folks here I like online shopping for guitars, mostly because for the longest time there weren't many brick and mortar choices available. If you stick to well-respected retailers such as Sweetwater or GC/Musicians Friend or Zzounds the return policies are very liberal. I've shipped back quite a few guitars that didn't make the grade and always ended up with a good one.
Have fun finding your first axe! Mine was a Squier Affinity Strat (circa 1999). I had it for many years and it went through all kinds of mod projects great and small as I learned what tones I liked and what I didn't. The neck and body on those guitars are usually first rate, so mine were still original when I donated it to a church about two years ago. Loved that guitar.