You should not assume two resistors will track just because they have the same specs. In reality, they will probably track somewhat, especially if they are from the same production batch, but you don't know that and shouldn't rely on that.

Either get resistors with low enough absolute temperature coefficient, or get resistors that are specifically matched. You can get multiple resistors in a single package that have matched temperature coefficient to well below their absolute temperature coefficients.

Look at manufacturers of more than just jellybean resistors, like Burr-Brown, Vishay, etc.

You should not assume two resistors will track just because they have the same specs. In reality, they will probably track somewhat, especially if they are from the same production batch, but you don't know that and shouldn't rely on that.

Either get resistors with low enough absolute temperature coefficient, or get resistors that are specifically matched. You can get multiple resistors in a single package that have matched temperature coefficient to well below their absolute temperature coefficients.

Look at manufacturers of more than just jellybean resistors, like Bourns, Vishay, etc.