Welcome to Infinite Flight and the community, Ted!
If you have the money, definitely try out Live+. It gives you all the aircraft and regions free for a year, and will add on to your current Live purchase. If you plan on buying just a few regions and aircraft, the new 787 is a really nice buy, with an equipped APPR (Autoland feature, as well as some smaller jets like the A320 family and 737! Some popular paid regions on Live, especially Expert, which is grade 3 or higher, include Denver, Hawaii, New York, and London
If you can’t afford Live+, my suggestion is to buy SoFlo. I love SoFlo, it’s really fun! It includes tons of airports and is so fun! Also remember to save up for months on live!
Recently bought infinite flight and on grade 2 ? It took me a whole live subscription to get grade 2 lol. But you could fly KLAX-KSAN or KPSP-KSAN. Nice job 👍
Definitely but the 787 especially if you like wide-body jets, if not try a Dash-8. If you want a region, London is popular if you like big airport and traffic, Carribean and Hawaii have some nice island hopping routes, and Denver is best for mountains (though Seattle is good if you like GA).
As for flights, I like starting from a more obscure less popular airport, and flying into a big one. Whatever floats your boat really, just don’t keep doing KLAX to KSAN to KNUC on repeat :)