So, this is the link I use when I go looking for bags:
https://everquest.allakhazam.com/wiki/EQ:Bags
As that site says, the Deluxe Toolbox (bought 3 or 5pp I think, 10 slot, No WR, 3.5lbs) is a good start and the mixing Mixing bowl (crafted, 10 slot, No WR, .4lbs) are good basic, lightweight bags.
I have an Extraplanar Trade Satchel (Trade Skill supplies only, 32 slot, 100%) in all my toons first inventory slot so that all TS items I loot go in it and don't get mixed in with my non-TS items. Then I keep 4 in my Bank for the items I use all the time and store the rest in the Trade Skill Depot (Bank)
Bag of the Tinkerers (bought 5250pp, 10 slot, 100% WR Bag). Purchased from the gnome vendor in Solusek's Eye for about 5250 pp
Tailored made bags, the 'Unexpanded" line (14, 16,18, 20) The trivial for the "Unexpanded" tailored bags is in the 500's, but the items can be gathered via
/overseer Research, Harvesting, and Crafting missions. Or you can buy then if/when you see them in the bazaar. My live server the 16 slot bags go for 14k and the 20 slot bags for 19k .
There are other tailored made bags with random % WR on them. The above list will give you a good idea of what's out there.
I hope that helps.