Identify what maltose syrup is doing in your recipe: chew/structure (chewy candies, cookies) vs. moisture vs. browning/glaze.
Pick the substitute from the table using the closest match (glucose-heavy syrups for chew, honey/golden syrup for moisture and gloss).
Use the listed swap ratio. If your substitute is sweeter than maltose (agave/maple), start with the reduced ratio.
For caramelizing or thick glazes, add the syrup earlier in cooking for browning; for no-cook sweetness or finish gloss, stir in at the end.
Taste-check: if too sweet, balance with a pinch of salt or add a little extra flour/batter base; if not glossy enough, simmer briefly to thicken.