I'd also recommend you don't use a glow fuel with nitro for a trainer. Just added expense and you don't need it.

( Messing with a ground-pounder's head. Nitro is a minor component of glow fuel)

There are a lot of good trainers out there. I'll vouch for the Hobbico Superstar 40. A friend has one that has been beat and generally abused - it even midaired with my GP Big Stik, snapped my wing off, and landed without a scratch and the motor still running. I have helped new pilots with the Avistar and that's a good choice, too. The SIG LT-40 is a workhorse, very gentle. I re-entered the sport a few years ago with a Global RCM 40 with a TT Pro-46 that was a better flier than many of the more sedate trainers (does well inverted).