Welcome to the forum! Glad to hear you're on the mend after the accident.
Plastic tire levers work fairly well on bike tires smaller than 3" You'd be better off with steel for anything bigger.
I do all my own bike maintenance and my fairly complete set of auto mechanics tools are a help for some tasks. With e-bikes, you add electrical meters & tools to the mix. If you get into working on chains, bottom brackets, derailleurs, cassettes and such, there are a host of specialty tools out there. Rather than spend a lot of money on a complete tool set, I generally buy the tools necessary for the task at hand. Some tools in an expensive bike tool kit you may never need.
The handiest tool you can own is a good bike work stand capable of holding a heavy e-bike.
A couple of specialty bike tools I use regularly are:
Chain gauge, Chain link pliers, Chain cleaner, Derailleur hanger adjustment tool, Cassette wrench & sockets, Tire valve core extractor, Spoke wrenches, small Torque wrench for bicycle fasteners, and a few others I can't think of right now.
I'm sure others here will chime in and add to the list.
Again, welcome aboard and good luck!