[@duskshine749] Let's see.

Rancher has 14 health base and start with an ability that allows them to Escape enemies easier. For the Rancher's optional pick, you've got one that's a heal and one that deals automatic damage to adjacent enemies as a bonus attack.

Bandito has 16 health which is loads but low sanity and no abilities to help with tanking.

You could also sway Lawman if you really wanted to but I'd say Rancher is your best bet. Lawman has 12 hp and an AOE low heal as an optional ability. 

I don't have the tech trees in front of me right now to see what your level options are (the rulebooks are packed up somewhere), but I can have a peek for you at the tech trees I formatted for RPGuild

There *is* a new base game expansion coming out in supposedly October time (got pushed back but the preorders are saying October) which has a samurai class which might be tanky. But, not a 100% guarentee it'll be out. Also, I'm not sure if I'll intergrate it straight away as y'all still haven't seen the Derelict Ship/Trederra expansions which are currently integrated into play.