Hello,
Personally, I like better quality aluminum MTB frames less than twenty years old. They are light, don’t rust, durable and handle well in tight spots. My current one is a 2004 Giant Iguana with rigid forks, riser bars, disc brakes and 9 X 1 gearing. It’s about 25# with rack and basket. Hope this helps.
Cheers,
Van
__________________
Remember: Real bikes have pedals.
...and never put a yellow tail on a Red, White and Blue kite!