multiplier opamp
Hello Fernando,
I guess, you may want to include negative rail (0 V) into the usable voltage range. thus a single supply or rail-to-rail type seems to be appropriate. LM358 would be basical usable, it has input common mode range below negativ supply, but because of the bipolar output stage, has limitations in minimal output voltage (if I remeber right, some 100 mV) and in positive output anyway.
From true rail-to-rail types that reaches nearly full supply voltage range on output, TLV2371 would be my design standard for low speed applications. But each manufacturer has suitable types. Depends on what's in your reach.
Regards,
Frank