Advice on building a Commander Shepard vanguard and a Kaidan Alenko sentinal

[Dragoness31]

So I am looking for advice on how to build a Vanguard Commander Shepard and a Kaidan Alenko sentinal-like character.
Here is the powers I usually take for Shepard:
Shepard (Vanguard)
Incendiary Ammo
Cryo Ammo
Pull
Biotic Charge
Shockwave
Nova
Assault Mastery
Fitness
Extra Power (Barrier)

Kaidan Alenko (Crowd Control/Tank)
Barrier
Reave
Overload
Cryo Blast
Alliance Officer

[Zwordsman]

Well there will not really be any direct transitions to starfinder. That said.

kaiden I think, if you rely on fluff, is a Witch Warper. A lot of those abilities could be fluffed with some of the enhanced version's abilities. nothing direct sadlyl but a lot of similarities. biggest issue is not enough tech spell access overall.. but there are some of the archetypes that could help depending on what aspect you want.

but kaiden I think would be a weird mix of Envoy (skills, barrier and such) and witchwarper. Weird worlds enhanced version, or some of the swap outs, are pretty good for fluffing into some of his abilities.

the mix would be hard to judge because envoy removes caster levels and makes the rest much weaker. So it loses effectiveness fast.