Another option for high sec only would be an Orca. Much easier to skill into and use, though still a bit pricey (600M for the hull). They have a ship hanger (fitted ships only) an definitely carry 400,000 m3 (8-12 cruisers, ~2 battleships). They are actually tankier than a freighter when fit correctly (hull tank ftw). Preferably use an alt with it, especially if you have active wardecs.

I've seen people cart them around low sec, using a webbing alt and scout. Whether you want to take that risk is up to you. I imagine in null sec, it would die at the first bubble.

Another option for high sec only would be an Orca. Much easier to skill into and use compared to a freighter or carrier, less expensive at 600M for just the hull. They have a 400,000 m3 ship hanger for unpackaged ships which is 8-12 cruisers or ~2 battleships. They can be tankier than a freighter when fit correctly (200k+ ehp) and align faster than a freighter. Preferably use an alt with it, especially if you have active wardecs.

I've seen people cart them around low sec, using a webbing alt and scout. Whether you want to take that risk is up to you. I imagine in null sec, it would die at the first bubble.