Anywhere text is accepted: Instagram bios, TikTok names, Discord, WhatsApp, gaming profiles and documents. The full Cursive Script alphabet is linked above.
What is the Cursive Script letter R?
It is the letter R rendered as the Unicode character ℛ (code point U+211B), part of the Cursive Script styled alphabet. It is a single character you can copy and paste anywhere.
How do I type ℛ on my phone or computer?
You do not type it from a keyboard; you copy it. Press the copy button above and paste it into any app. That is the whole point of Unicode styled letters.