You can name an amorstand with a custom font by using the "font" parameter. You can also give yourself a nametag with the font you want.
Here are few exemples with commands:
/summon minecraft:armor_stand ~ ~ ~ {CustomName: '{"italic":false,"font":"minecraft:alt","text":"custom name"}'}
- This command spawn an armorstand with a custom name
/give @s minecraft:name_tag{display:{Name:'[{"text":"your text here","italic":false,"font":"alt"}]'}} 1
- This command give you a nametag with a custom name, you can rename an armor stand with it
/data merge entity @e[type=minecraft:armor_stand,sort=nearest,limit=1] {CustomNameVisible:1}
- This make the armor stand name visible because it's not normally