Since this is the introduce yourself part of the forum. Welcome to the forum tensitron. Plenty of other parts of the forum to sell or try to sell your domains, anyway good luck.
No quick way to sell domains unless you're selling them dirt cheap I'm afraid. Try selling the entire portfolio on here or Flippa, but be sure to have a reserve price.
I have a separate business that's helping. That business has also been keeping me way too busy to dedicate time toward these domains, and I can't keep paying renewals forever.
Why not send a list and see if you get offers first? Or provide a link. If the prices are on the lower end (under $1000), the free listings at Flippa are not a bad way to go. Those that don't get any interest or offers can eventually be sold off dirt cheap or just dropped.