The Church has ceremonies that do not require a Bishop, Priest or Deacon and include the reading of the Gospel.
In preparing for Confirmation there are catechetical meetings. One of the liturgical books is Book of Blessings. It includes ceremonies that are used in these catechetical meetings. It has in Chapter 4, Section II, Order of Blessing for a Catechetical or Prayer Meeting. The introduction has:
“509 Whenever Christians or catechumens come together in the name of Christ, he himself, as he has said, is present in their midst. It is therefore entirely natural that those taking part in the meeting should wish to offer prayers in praise of Christ and in petition for the divine help needed to achieve the purpose for which they have gathered. This is particularly the case in meetings held for the purpose of catechesis or communal prayer, but it is also proper that other meetings be planned in such a way that a period of time is set aside so that the meeting begins with liturgical prayer.”
It then has a paragraph about how the Liturgy of the Hours can be used for this. The third paragraph has:
“But in some circumstances a celebration of the liturgy of the hours may not be possible. In this case the meeting should begin with an invocation of the Holy Spirit and of the divine blessing in the hymn Veni, creator or the antiphon Veni, Sancte Spiritus, or some other suitable song; then there is a short, well-chosen reading from sacred Scripture, followed by an opening prayer from the Roman Missal: from the Proper of Seasons, “Pentecost”; …”.
Other options for the Opening Prayer are given. At the end of the meeting there is a blessing. The ceremony can be done without a Priest or Deacon:
“512 The present order may be used by a priest or a deacon. It may also be used by a layperson, who follows the rites and prayers designated for a lay minister.”
It is not saying that the “reading from sacred Scripture” is not to include a Gospel reading. Clearly it can.
Often the ceremonies in the Book of Blessings can be done in Mass or outside Mass. The term for the ceremonies that are not in Mass is often “within a Celebration of the Word of God.” (For example Order for the Blessing of Missionaries Sent to Proclaim the Gospel).
In the liturgical book “Ceremonial of Bishops” it has a Chapter on Celebration of the Word of God. (Part III, Chapter 7). It includes: “224 Celebrations of the word of God should be patterned on the structure of the liturgy of the word at Mass.”
Here is another ceremony from the Book of Blessings, which includes a Gospel reading. It is Order for the Blessing of a Mother Before Childbirth, from Part I, Chapter 1, Section VIII, A. It includes:
READING OF THE WORD OF GOD
244 A reader, another person present, or the minister reads a text of sacred Scripture.
**Brothers and sisters, listen to words of holy gospel according to Luke: ** 1:39-45
The baby leapt in my womb for joy.
During those days Mary set out and traveled to the hill country …".
247 As circumstances suggest, the minister may give those present a brief explanation of the biblical text, so that they may understand through faith the meaning of the celebration."
This ceremony can be used by a “priest, a deacon, or a lay minister”.
These ceremonies are liturgy, they are not imitating the liturgy.