I'm going to give away my secret, publicly, for the first time.
If you want a symbol that can (possibly) be used in a domain name, this is a good starting point. Many of these will still not render in address bars however, especially those that are Latin look-alikes, so a lot of trial and error is required.
https://util.unicode.org/UnicodeJsps/list-unicodeset.jsp?a=%5B%5B%3ABlock%3D%2F%28Arabic%7CArmenian%7CAvestan%7CAzerbaijani%7CBalinese%7CBamum%7CBatak%7CBelarusian%7CBengali%7CBopomofo%7CBrahmi%7CBuginese%7CBuhid%7CBulgarian%7CCarian%7CCham%7CCherokee%7CChinese%7CCoptic%7CCyrillic%7CDevanagari%7CEgyptian+hieroglyphs%7CEthiopic%7CGeorgian%7CGlagolitic%7CGreek%7CGreek%7CGujarati%7CGurmukhi%7CHan%7CHangul%7CHanunoo%7CHebrew%7CHiragana%7CImperial+Aramaic%7CInscriptional+Pahlavi%7CInscriptional+Parthian%7CJapanese%7CJavanese%7CKaithi%7CKannada%7CKatakana%7CKayah+Li%7CKharoshthi%7CKhmer%7CKorean%7CKurdish%7CLao%7CLatin%7CLepcha%7CLimbu%7CLisu%7CLycian%7CLydian%7CMacedonian%7CMalayalam%7CMandaic%7CMeitei+Mayek%7CMoldavian%7CMongolian%7CMyanmar%7CNew+Tai+Lue%7COgham%7COl+Chiki%7COld+Persian%7COld+South+Arabian%7COld+Turkic%7COriya%7CPhags-pa%7CPhoenician%7CPolish%7CRejang%7CRunic%7CRussian%7CSamaritan%7CSaurashtra%7CSinhala%7CSumero-Akkadian+cuneiform%7CSundanese%7CSyloti+Nagri%7CSyriac%7CTagalog%7CTagbanwa%7CTai+Le%7CTai+Tham%7CTai+Viet%7CTamil%7CTelugu%7CThaana%7CThai%7CTibetan%7CTifinagh%7CUkrainian%7CUnified+Canadian+Aboriginal+Syllabics%7CVai%7CYi%29%2F%3A%5D%26%5B%3AXID_START%3DYes%3A%5D%26%5B%3AIdentifierStatus%3DAllowed%3A%5D%5D%0D%0A&g=&i=
Edit: Fediverse Symbol ⁂ (npub1tzj…dfrk)
#Fediverse #Logo #Symbol