A standard would be a bit easier to control imo. Cruisers are fine for learning as well, but they lend themselves to at speed riding more than slow speed maneuvers. A standard provides clearance for lock to lock handlebar movements without crushing your wrists and is more than enough for just everyday riding. Of course, I'm biased as I ride a standard and can't stand cruisers.
If you want to go with standards, there are a few bikes that fall in the beginner category (I'm assuming you're in the US/someplace without restrictions). The main one is gonna be the Suzuki GS500. It was my first bike and it's perfect for pretty much everything. They're easy to find, easy to fix (barely anything changed in the 20 years they made it), and easy to ride without feeling like you're over your head. They make enough power to get you up to highway speeds just fine and are great fun on twisty roads. The equivalent of the GS500 is the Kawasaki Ninja 500 (EX500), but that has a slightly more aggressive (still not pure sportbike) position and may be harder to find, or at least it was in my area.
Depending on how you wanted to proceed, you could also look at the Suzuki SV650, which is significantly more powerful than the GS500, but not to the point that it should scare you. It's a bike that's generally regarded as one of the best all around bikes. It's got a great engine, it's available in fuel injection (the GS500 is only carbureted), and it's got a relaxed position compared to sportbikes if you can find one of the naked ones.
A couple more standard bikes that are praised, but I can't really comment on would be the Triumph Street Triple and the Ducati Monster (there are different versions, whichever has the lowest displacement).
However, before you look at bikes, and once again assuming you're in the US, you should look into taking the MSF Basic Rider Course. It's a three day, 15 hour course that teaches you everything you need to know about riding a motorcycle along with giving you a chance to get out on a bike that they provide to see how you handle it. Depending where you live it could be free or up to a few hundred bucks, but it's well worth it if you're serious about getting into motorcycles. Also, varying from state to state, it may give you a waiver for the DMV test, so you could just walk into the DMV and walk out with your license without needing to take their test. It also provides an insurance discount for most carriers.