Unicode has a million icon-like glyphs, but they're very hard to search.
Is there a Unicode glyph that looks like a "Binocular" or "magnifying glass"? Or is there a symbol that's used to mean "Search", which is in Unicode?
There is U+1F50D LEFT-POINTING MAGNIFYING GLASS (🔍) and U+1F50E RIGHT-POINTING MAGNIFYING GLASS (🔎).
You should use (in HTML) 🔍
or 🔎
They are, however not supported by many fonts (fileformat.info only lists a few fonts as supporting the Codepoint with a proper glyph).
Also note that they are outside of the BMP, so some Unicode-capable software might have problems rendering them, even if they have fonts that support them.
Generally Unicode Glyphs can be searched using a site such as fileformat.info. This searches "only" in the names and properties of the Unicode glyphs, but they usually contain enough metadata to allow for good search results (for this answer I searched for "glass" and browsed the resulting list, for example)