Are you still worried about the various Top Ups in the game? Don't worry, I know a very good platform that provides Top Ups for various games. I believe you can always get what you need.

Chcek → IGGM.com

AFK Journey Dragon: Crystals/Classic Gazette/Premium Gazette
Bigo Live: Diamonds
Brawl Stars: Brawl Pass Plus/ Gems
Call of Duty Mobile: CP
Candy Crush Saga: Gold Bar
Carnival Tycoon: Spins/Coins
Clash Royale: Gems
Clash of Clans: Gems
Dice Dreams: Rolls/Coins
Free Fire: Diamonds
Gardenscapes: Various Kits/Coins
Genshin Impact: All-In-One Bundle/Bless of the Welkin Moon/Genesis Crystal
Goddess of Victory Nikke: Gem(s)
Hay Day: Diamonds
Honkai Star Rail: All-In-One Bundle/Oneiric Shard
Honor of Kings: Tokens
Identity V: Echoes
Knives Out:  Vouchers
Last War Survival: Standard Packs/All-In-One Bundle/Super Monthly Pass
League of Legends Wild Rift: Wild Cores
Legend of Mushroom: Gems/Diamonds
Mobile Legends Bang Bang: Diamonds
NEW STATE Mobile: NC
PUBG Mobile: UC/RP Upgrade Pack (A9)/Elite RP Upgrade Pack (A9)
Pokemon Go: PokéCoins
Pokémon TCG Pocket: Poké Gold
Ragnarok M Eternal Love: Big Cat Coins
Ragnarok Origin Global: Nyan Berry
Rise of Kingdoms: Pile of Gems
Roblox Robux: Premium/Robux
Royal Match: Pack/All Treasure/Coins
Squad Busters: Coins
State of Survival: Diamonds
Tarisland: Crystals/Ticket
Tower of Fantasy: Tanium
Township: Pack/Cash/Coins
Whiteout Survival: Standard Packs/Various All-In-One Packs
Wuthering Waves: Lunites/Accs
Zenless Zone Zero: All-In-One Bundle/Monochrome/Accs

The above games all have corresponding Top Up services on IGGM. I believe you can always find what you need.