Use the mars and venus icon in your code
Font Awesome 6 Free · Solid style · Unicode U+F224 · class fa-mars-and-venus
HTML
<i class="fa-solid fa-mars-and-venus"></i>
<!-- Font Awesome 4/5 style class also works in 6: -->
<i class="fa fa-mars-and-venus"></i>
CSS pseudo-element
.my-mars-and-venus::before {
font-family: "Font Awesome 6 Free";
font-weight: 900;
content: "\f224";
}
HTML entity / JavaScript
 <!-- inside an element using the FA font -->
"\u{f224}" // JavaScript string
Load the font once (CDN)
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css">
Prefer the PNG from the editor above when the icon has to sit in a document, a slide or an email where web fonts do not load. Use the code when it is going on a web page — it stays sharp at any size and takes the text colour.
Same family: mars, and, venus
Icons that share a word with mars and venus — useful when you need a matching set.
more icons
here is some more icons for you to use.