Spent a few hours testing the entire Unicode character set in FFXIV, and came up with the following macro sets to make them easily available in-game. I admit that I did skip the accented Latin alphabet options. Let me know if I missed some, and I can try to update it.
Macro 1:
①②③④⑤⑥⑦⑧⑨⑩⑪⑫⑬⑭⑮⑯⑰⑱⑲⑳⓪
⑴⑵⑶⑷⑸⑹⑺⑻⑼⑽⑾⑿⒀⒁⒂⒃⒄⒅⒆⒇
⒈⒉⒊⒋⒌⒍⒎⒏⒐₀₁₂₃₄₅₆₇₈₉
❶❷❸❹❺❻❼❽❾
ⅠⅡⅢⅣⅤⅥⅦⅧⅨⅩⅰⅱⅲⅳⅴⅵⅶⅷⅸⅹ
⒜⒝⒞⒟⒠⒡⒢⒣⒤⒥⒦⒧⒨⒩⒪⒫⒬⒭⒮⒯⒰⒱⒲⒳⒴⒵
ΓΔΘΛΞΠΣΦΨΩ αβδεζηθικλμνξοπρστυφχψω
ÞþßÆæŒœъыьэюяё
БГДЖИЙКЛМНОПРУФХЦЧШЩ
ЪЫЬЭЮЯабвгдезийклмнопрстуфхцчшщ
Macro 2:
←↑↓→ ⇒ ⇔✓•·‥…°〠☀☁☂☃♀♂№℡™©®⌒
■▲▼●♠♥♦♣★◎□△▽○♤♡♢♧☆◯♪♭♯
─│┌┐└┘├┠┤┨┬┰┴┸┼╂╱╲╳
━┃┏┓┗┛┝┣┥┫┯┳┷┻┿╋ ∙≈‹›«»
∀∂∃∇∈∋∑Δ√∝∞∟∠∥∧∨∩∪∫∬∮∴∵∽§
¬×÷≒≠≡≤≥≦≧≪≫⊂⊃⊆⊇⊥⊿±¼½¾º¹²³ªº
–—―†‡•…‰′″”„※✓€$$¥¥£¢¢圓元円¤¶¸¡¿;¦·
、。〃々〆〈〉《》「」『』【】〒〔〕〜〝〟¨¯´¸
㎅㎆㎇㎈㎉㎎㎏㎐㎖㎗㎘㎜㎝㎞㎟㎠㎡㎢㎣㎤㎥㎦
㎰㎱㎲㎳㏄㏈㏋㏌㏍㏔℃℉
Macro 3:
ぁあぃいぅうぇえぉおかがきぎくぐけげこごさざしじ
すずせぜそぞただちぢっつづてでとどなにぬねのは
ばぱひびぴふぶぷへべぺほぼぽまみむめもゃやゅゆ
ょよらりるれろゎわゐゑをんゔ゙゚゛゜ゝゞ
ァアィイゥウェエォオカガキギクグケゲコゴサザ
シジスズセゼソゾタダチヂッツヅテデトドナニヌネ
ノハバパヒビピフブプヘベペホボポマミムメモャヤ
ュユョヨラリルレロヮワヰヱヲンヴヵヶ・ーヽヾ
㌀㌃㌅㌍㌔㌕㌖㌘㌞㌢㌣㌦㌧㌪㌫㌱㌳
㌶㌹㌻㍂㍇㍉㍊㍍㍎㍑㍗㍻㍼㍽㍾㍿