Im based in Europe and use Foreflight primarily as my IFR planning and filing tool. It just makes life a lot easier and has everything you need. It costs, however they do offer free trial periods and their support is second to none. If you are just looking for a web based planner then I recommend
https://skyvector.com It’s totally free and very useful. Coupled with
www.Autorouter.aero you can’t go far wrong.