PkMn Go How to grind Meltan candies quicker in Pokemon GO?

[MMMs]

Any of you guys know how to grind Meltan candies quicker? As far as I know you cant evolve meltan in Lets GoP/E or in Sword/Shield so Im forced to play Pokemon GO just to evolve the little guy.

I'm literally 1 Pokemon away to finishing the National Pokedex and as far as I know, you can only get that special Magearna for completing the National Dex in Pokemon HOME

 

[Jisenku]

Tips:

• Catch all of the Meltans you can
• Walk with a Meltan
• Walk to industrial areas, thats where you can find Meltans
• Transfer some of your extra Meltans to the Professer
• Grind harrrdddd