MTT defense ranges can get tricky since they depend a lot on stack depth, position, and the tendencies of your table. In general, I try to defend a bit tighter from the small blind and wider from the big blind, especially against late-position opens. Suited connectors and broadways usually perform well if you’re getting a good price.
If you’re just starting to build your ranges, I recommend checking out some free preflop charts from sites like Upswing or Raise Your Edge - they’re a good baseline, but honestly, adjusting based on how aggressive your opponents are will always beat following charts blindly.