1- All mount from the store - Need buy it with Tibia Coin (The value can change, depende of time and mount you want (900TC - 450TC).
Here is a list: https://www.tibiawiki.com.br/wiki/Montarias#Store
And you can use it wherever you want.
2- Rented Horse (3 colour versions) - Need pay 500GP with Palomino (Thais - East Entrade) or Apploosa (Venore - West Entrade) per day to get it.
You can use it by 24 RL hours at the ened if you want need go back and pay another 500Gp to other 24H.
3- Crystal Wolf, using Diapason on Crystal Wolf (Check the World Change Thronfire).
Donkey, using Bag of Apple Slice on you or a mob when the Incredibly Old Witch torn you into a Dunkey (Thais Suthwest).
Kingly Deer, using Golden Fir Cone or Music Box on Enraged White Deer (Ab'dendriel Suth)
Neon Sparkid, using Crackling Egg.
Sparkion, using Vibrant Egg.
Vortexion, using Menacing Egg.
Rapid Boar, using Hunting Horn on Boar.
Tiger Slug, using Slug Drug in Slug (South Venore - Swamp Trolls Cave).
War Bear, using Slingshot on Bear.
War Horse, using Sugar Oat or Music Box on Wild Horse (Thais - East) you need check the Raid of this.
Water Buffalo, using leech on Water Buffalo (Venore Swamp).
You can get all this mounts but need pacc to use.