Depending on your budget and whether you are rushing for phone replacement. The first 2 u r suggesting are under mid range while the last is considered flagship with 8 gen 1. There are some gap of pricing between mid & flagship.

If among this, I think the first 2 mid range is better as 8 gen 1 is not power efficient with less sot and can get very hot. That's why they launch it with 8+ gen 1 later.

If u are looking for flagship and no budget restrictions better look for those with 8+ gen 1 or 8 gen 2 chip. For 8+ gen 1 there are OnePlus 10t, xiaomi 12t pro and Samsung fold/flip series.

Meanwhile for 8 gen 2, currently there are only iqoo 11 and later only competitor like xiaomi 13, Samsung s23, OnePlus, edge 40 etc etc coming. If can wait then better wait for 8 gen 2 phone, otherwise 8+ gen 1 is also a good choice.