DrDamn It’s almost certainly all worth next to nothing I’m afraid. Are your retainers and chocobo bags full as well? You could dump it on them if not. I generally just sell most stuff to vendors - crafting ingredients like bat wings, beast blood, animal hides etc. are not worth enough to put on the AH. If you’re getting into crafting some of it might come in useful but most common ingredients are dirt cheap anyway.
You get more valuable stuff through other means usually - retainers can occasionally bring back valuable stuff if you send them out on adventures, gathering jobs can harvest valuable crafting materials and maps which sell for decent cash. Crafting jobs can make tons of cash at high levels but they’re expensive to get there in the first place.
Once you get a high enough rank with your grand company, you can buy two different types of box from the GC vendor for 20000 seals. They contain random minions or occasionally mounts. Most aren’t worth much but some are extremely valuable. I sold a rare minion I got from one of the boxes for 2.8 million a couple of weeks ago.