Your sentence is close, but it does not fully align with standard citation practices in MLA format. In MLA, you typically do not include the year in in-text citations. Instead, you would include the author's last name in parentheses.
If you are quoting or paraphrasing the statement, here’s how you can revise it:
"Our family is the best one to go for love and happiness" (Harson).
If this is intended to be a paraphrase or a direct quotation, you would also need to provide a corresponding Works Cited entry to give full credit to the source:
Harson, Siktus. "Fighting Unemployment is Papua New Guinea's Biggest Battle." Union of Catholic Asian News, 28 Feb. 2022, [URL if available].
If you wish to keep the original structure of your sentence, you might modify it as follows:
According to Siktus Harson, "our family is the best one to go for love and happiness."
This way, you provide a clear attribution without including the year in the citation.