If lavender can go with peppermint, how about spearmint? That is my favorite mint EO. I love rosemary and spearmint EOs together.
How about these mint combos:
Lavender + Spearmint
Lavender, Rosemary, Sage, and Spearmint
Lavender, Spearmint, Peppermint, and Vanilla (this would be a sweet velvelty mint)
No I haven't tried these. They could be yuck city! But they sound good enough to experiment with.