Lets make a list of Virtual Table Top softwares:

• Fantasy Grounds: http://www.fantasygrounds.com
• Roll 20: https://roll20.net/
• Foundry VTT: https://foundryvtt.com/
• role: https://www.playrole.com/
• https://www.tabletopsimulator.com/
• arkenforge: https://arkenforge.com/
• battlegrounds: RPG: http://battlegroundsgames.com/battlegrounds-rpg-edition/
• d20 pro: https://d20pro.com/
• epic table: http://www.epictable.com/
• gamescape: https://gamescape.app/
• Questline VTT: https://questlinevtt.com/
• rpg plus: https://www.appmindedapps.com/rpg.html
• rolisteam: https://rolisteam.org/
• Legends Ember (3d based) -
• mythic table: https://www.mythictable.com/
• owlbear rodeo: https://www.owlbear.rodeo/
• SendingStone - https://www.sendingstone.com/
• Shard Tabletop (chrome extension based?): https://www.shardtabletop.com/
• shmeppy: https://shmeppy.com/
• WildshapeVTT (3d map making software+vtt): https://store.steampowered.com/app/1543590/Wildshape__Map_Editor__VTT/
• Tabletop: https://new.tableplop.com/
• Fari App (FOSS): https://fari.app/
• The Augur VTT https://augurvtt.com

No longer supported:

• astral: https://astraltabletop.com/

Reply to this with advice, corrections additions or whatever.