In Sanguine for example, the bank gets extremely crowded and is hard or sometimes impossible to reach.

Suggestion:

Option 1:

Extend the banks activation area to the base the bank is standing on.

Option 2:

Have a few smaller bank nodes around it or around the city.

Option 3:

A second bank.

Option 4:

An "open bank" spell that only works in the proximity of the bank. Could be extended to "proximity activation" spell so that crafting stations and vendors can be accessed in the same way if too crowded.

Thank you and good luck,

Sin Sin