All marks in the Scarlet and Violet Games
New marks
Destiny mark: 1/25 chance on your birthday on a wild Pokemon, 3/25 if you have the mark charm
Item Finder Mark: 1/100 chance to be given after Pokemon finds item in let’s go mode
Gourmand Mark: 3/101 chance to be on a Pokemon when making sandwiches or buying food from a shop
Jumbo Mark: only obtainable by talking to the trainer with Pachirisu near a flower bed in Mesagoza. *the Pokemon has to be somewhat big for the species
Mightiest Mark: Always obtained when catching a Pokemon from a 7 star Tera raid
Mini Mark: same as the jumbo mark but Pokemon needs to be small for its species
Partner Mark: 1/100 every 10,000 steps you take for a Pokemon to get this in your party
Titian Mark: Obtained by catching a titan Pokemon (you have to defeat the titan Pokemon first)
Alpha Mark: Obtained by sending an alpha Pokemon from legends Arceus to S/V
Returning Marks
Marks that have a 1/50 chance. With Mark charm being 3/50
Lunchtime Mark
Sleepytime Mark
Dusk Mark
Dawn Mark
Cloudy Mark
Rainy Mark
Stormy Mark
Snowy Mark
Blizzard Mark
Sandstorm Mark
Misty Mark
Uncommon Mark
Rare Mark: 1/1000. With charm, 3/1000
Marks that have a 1/2800 chance. With Mark charm, 3/2800
Rowdy Mark
Absent minded Mark
Jittery Mark
Excited Mark
Calmness Mark
Charismatic Mark
Intense Mark
Zoned-Out Mark
Joyful Mark
Angry Mark
Smiley Mark
Teary Mark
Upbeat Mark
Peeved Mark
Intellectual Mark
Crafty Mark
Ferocious Mark
Scowling Mark
Kindly Mark
Flustered Mark
Pumped-up Mark
Zero energy Mark
Prideful Mark
Unsure Mark
Humble Mark
Thorny Mark
Vigor Mark
Slump Mark
That should be all
All of these mark are obtainable in S/V
Also for Jumbo and Tiny mark, just talk to the npc and select a Pokemon from your box
Source and if want to know how to obtain: https://www.serebii.net/scarletviolet/marks.shtml