29inch rear bike wheel (BN2)

I need a new 29” rear wheel, mine is broken, the wheels bent and is unfixable! I cycle as my main means of transport to work- it’s in, a hard to get via public transport, location and I don’t drive! I need a disc break, 10speed mountain bike wheel and I can’t afford a new one at the moment. I was hoping a kind person in the community is throwing an old one out and wouldn’t mind donating it to me, if that’s the case I’d be eternally grateful! Thanks for taking the time to read my message, have a nice day. :) cheers