The Great Commentary (vol. 2): S. Matthew's Gospel: Chaps. X-XXI

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p. 361 (DjVu p. 371) is a very good commentary on Mt. 19:29:

every one that hath left house, or brethren, or sisters, or father, or mother, or wife, or children, or lands for my name's sake, shall receive an hundredfold [Mk. 10:30: "now in this time", i.e., in the present world, too], and shall possess life everlasting.

He shows that renouncing the world is really a profitable exchange, not a renunciation with nothing in return:

[I]t shall not seem that he has lost his own possessions, but has only laid them down, and in Christ's providence has multiplied them with great usury. For spiritual affections are sweeter than natural ones [Suaviores enim sunt affectus spiritus, quam naturæ]. Wherefore he who has left one home for Christ will find a hundred and more homes of pious people open and ready to receive him with love and gladness. […] They find the houses of all the faithful open to receive them to hospitality, and are frequently migrating from house to house. So too a religious, who has left one house of his father for Christ finds a hundred, not houses, but colleges and monasteries, very great and fair to receive him with maternal tenderness. So also he who has left one field for Christ will find a hundred fields of the worshippers of Christ by which he may be nourished, and that without labour, or toil, whereas he would have had to cultivate his own. In like manner for one brother forsaken, there will be very many Christians who will cherish him with fraternal love, and cleave to him more sweetly with spiritual attachment. For one sister, very many maidens will chastely love him, and attend to his wants like a brother. Instead of one father, very many elders will cherish him as a son. For one mother, very many matrons will supply his necessities with maternal care. For one wife, a hundred wives of others, united to him in chaste spiritual bonds will be ready by means of themselves and others to care for him in sickness, and attend to his wants just as lovingly as though they were his own wives. Lastly, instead of a single son or a daughter, innumerable children will revere him as a father, and hang upon his sound doctrine and counsels, from whom his mind will derive greater pleasure than he could for his own children.