I would like to suggest:
"Tokelau mirror lunar series" , as they are in their 7th year and only produce 500 per year with 20-50 earning a level 70
2016-2021 coins already recognized, but 2022 (year of the tiger pending)
Second suggestion is a "modern tribute to the sculpter Adolph Weinman"
To include the 2016 gold mercury, gold walking and gold standing liberty,
The Palladium eagles series (2017-present) and of course,
the silver eagle series
Please let me know if these are possibilities
Thanks in advance for your time
Respectively yours,
Platnumheart666