I can't seal with EVOO or EVCO - too heavy for me. I can use them in TINY amounts for moisture, (or in a DT or RO), but for sealing I have to go light. The BEST I've found is mineral oil, tbh. I think that works really well for us porous gals, not well for low porous. But I've also used jojoba and SM elixir, which is mainly Shea and argan oil.
2c/3a/3b, Fine/med, Dense, high porous, & normal elas.

Lo-poo - Renpure Keratin, SMR, Giovanni SaS
clarifying - mix Johnson's H2T with low poo
Co-wash - Suave Nats. clar. or coco.
RO - GVPCB, Ion Eff. Care, TN.
LI - SMR, Cure Care, or RO
Seal - MO or Jojoba
DT - + honey, ACV, & EVOO to SM masque & GVPCB
PT - Gelatin!, CNPF
Styling - FSG, AIF, BRHG, LALS/PS, GF curl spray gel, SM Souffle/Smoothie, LOOB
Oils - MO!, EVOO, jojoba, GSO, SM Elixer, EVCO, VO5 Hairdressing