See the plenary indulgence on visiting a cemetery or a church during November or on all souls day here:
The Enchiridion of Indulgences
These plenary indulgences have been extended to every day in November.
“Visit to a Church or Oratory on All Souls Day [or any day in November 2020]. PLENARY INDULGENCE. A plenary indulgence, applicable ONLY to the souls in purgatory, may be obtained by those who, on All Souls Day, piously visit a church, public oratory, or — for those entitled to use it, a semi public oratory. It may be acquired either on the day designated as All Souls Day or, with the consent of the bishop, on the preceding or following Sunday or the feast of All Saints. On visiting the church or oratory it is required that one Our Father and the Creed be recited.”
“Visit to a Cemetery. ONLY applicable to the souls in Purgatory when one devoutly visits and prays for the departed. A PLENARY INDULGENCE is bestowed for this work each day between November 1 and November 8 [or any other days in November in 2020].”
“This year, the indulgence can be obtained by anyone who visits a cemetery, even if only mentally, on any day in November, and devoutly prays for the faithful departed.”
Recall that every Plenary Indulgence (except the special plenary indulgence at the time of death and the plenary indulgence for divine mercy Sunday) requires the three constants: “These conditions are Sacramental Confession, reception of Holy Communion and a prayer for the Holy Father’s intentions.”