What other insurance companies compare to Tricare?

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I grew up a military child and was always covered by Tricare. I was debating about into the military myself for a while but finally come to the conclusion that it wasn't for me. Only thing that does worry me is I lose my medical benefits. I know some jobs include insurance but I still would like to look for private insurance. I am willing to work hard to pay for my own but not exactly sure, what other insurance companies compare?

What other insurance companies compare to Tricare?