Maybe buy used iPhone. Privacy wise it’s better than stock Android. Banking apps should be working and you get more years of security updates than cheap Android.
Still using my old trusty Galaxy Tab S 5e but batteryis showing its age. Thinking of Tab S9 which has unofficial LineageOS at XDA, modern CPU and OLED. Cannot find anything else to replace S5e. Most new tablets eithet too big or LCD.
Maybe buy used iPhone. Privacy wise it’s better than stock Android. Banking apps should be working and you get more years of security updates than cheap Android.