The big box stores may have bengal. That’ll get them for sure... I haven’t seen a bug this stuff can’t kill. (Don’t get the “bengal gold”, get the one in the pic below)
Bengal Chemical 92465 Roach II, 9 oz https://www.amazon.com/dp/B000RUD1B8/ref=cm_sw_r_cp_api_i_yjxhFbMWZY91C
I've found Bengal spray to be really effective. Spray it outside around doors and windows and it should keep them out. They have it at Walmart and hardware stores.
Bengal Chemical Roach II, 9 oz https://www.amazon.com/dp/B000RUD1B8/ref=cm_sw_r_cp_api_LjlsBb01PKM53
Isn't he cute? Try this stuff we know about killing roaches in SE LA!!