easy to construct FM low-pass or band-pass filter - Electrical Engineering Stack Exchange
88 ~ 108MHz bandpass filter, FM broadcast band pass filter, SMA interface, ultra small volume.|chip capacitor|capacitor 06030603 capacitor - AliExpress
Original new 100% LPF88A bandpass filter FM 87 108MHZ CQ low pass direct insertion ceramic crystal oscillator power accessories|Voltage Regulators/Stabilizers| - AliExpress
LNA for all: DIY "FM TRAP" or 88-108 MHz Band STOP filter