In reality, there is no such thing as a “flagship” or “midrange” mobile; rather, processors fall into flagship, midrange, or low-end categories. Now, if you want to buy a flagship, midrange, or low-end mobile, you need to pay attention to the processor.
midrange
MediaTek Helio G96
MediaTek Helio G90T
flagship MediaTek Helio G95
Qualcomm Snapdragon 835 Qualcomm Snapdragon 730
Samsung Exynos 8895 Qualcomm Snapdragon 730G
HiSilicon Kirin 970 Qualcomm Snapdragon 690
Apple A10 Fusion MediaTek Helio G99
Samsung Exynos 9810 Qualcomm Snapdragon 750G
Qualcomm Snapdragon 845 MediaTek Dimensity 1050
Apple A11 Bionic Qualcomm Snapdragon 778G
HiSilicon Kirin 980 Qualcomm Snapdragon 780G
Samsung Exynos 9820 Qualcomm Snapdragon 778G Plus
Qualcomm Snapdragon 855
Samsung Exynos 9825
Qualcomm Snapdragon 855 Plus
Qualcomm Snapdragon 860
MediaTek Dimensity 1000 Plus
HiSilicon Kirin 990 (5G)
Samsung Exynos 990
Apple A12 Bionic
Qualcomm Snapdragon 865
MediaTek Dimensity 1200
MediaTek Dimensity 1100
HiSilicon Kirin 9000S
Qualcomm Snapdragon 865 Plus
Qualcomm Snapdragon 870
MediaTek Dimensity 8100
HiSilicon Kirin 9010
Samsung Exynos 2100
Apple A17 Pro
Qualcomm Snapdragon 8 Gen 3
MediaTek Dimensity 9300