Hololive has:
Spectra optical
Cigna dental
Bluecross medical
Nijisanji has:
VSP optical
Delta Dental dental
UHC medical
Niji will put $4 to your 401k for every $1 with an option to withdraw 1/4 after 3mo
Holo will put $3 to your $1 with an option to withdraw 1/3 after 6mo
Both Niji and offers med/opt/dent coverage to your dependents after 3mo, both offer life insurance (Niji 10000, Holo 13000)
Holo only offers three tiers of each plan, Niji allows you to mix and match to best suit you.
Holo pays for half your gear upfront with vouchers, niji sends you your gear, both are expecting you to have your own computer.
Niji gives accidental death and dismemberment when you do stage events, Holo offers only dismemberment but in the event of death will pay up to 5k in funeral expenses on top of your life insurance.