What would I expect for the spell resistance for races and classes with racial spell resistance?
I would just expect, they don't need or need less Items to have access to a useful spell resistance score. And I would expect racial and class spell resistance to give the possibility to have slightly more spell resistance than non spell resistance races and classes.
My suggestion to achieve this is:
Give drow and deep gnome spell resistance equal to the spell resistance as if they where using an item with enchantment bonus for spell resistance.
And the spell resistance per character level should be the same as for Cannith crafting.
To to be ahead, compared to non spell resistance races, they invest AP in the racial enhancement tree as we see it already.
To get the maximum spell resistance score also gnomes and drow have to look out for items with insightful spell resistance and quality spell resistance.
For the monk class spell resistance (the Diamond Soul feat).
I would like to see, monks get insightful spell resistance per character level with the Diamond Soul feat. And again insightful spell resistance per character level similar to the spell resistance they would get with Cannith crafting. To get a bit more spell resistance than non spell resistance classes they could have an option in the class enhancement tree to increase this score. Maybe just an addition to one of the already existing enchantments.
This way a drow or deep gnome monk would only need to look out for items with quality spell resistance (maybe we see more than the Drow Outrunner Armor in the future).
And a drow or deep gnome monk could have noticeably higher spell resistance then non spell resistance class/race combinations.
Barbarian Occult Slayer could get insightful spell resistance too. So a Occult Slayer need to use an Item with enhancement spell resistance and quality spell resistance in addition to get a real high spell resistance score. This is almost no change for drow and deep gnome barbarians, but every other race could have a comparable spell resistance score then.