Where do we find happiness? In the Torah

The first step is to look into a concordance. A concordance is an alphabetical list of words with an index of where to find them. (You can also type the word into Sefaria and see what comes up) Now there are a lot of words associated with happiness - There are several words in Hebrew that denote happiness

Simcha (Hebrew: שמחה) means happiness more generally, or a celebration ¹ ³.
Osher (Hebrew: אושר) means a deeper, lasting happiness ² ⁵.
Orah (Hebrew: אורה) means either "light" or "happiness"².
Gila (Hebrew: גילה) means an exuberant outburst of joy or the happiness of discovery ².
Ash’reh (Hebrew: אשרה) means happiness in Hebrew ¹.(Bing Search on words for happiness in Hebrew)

Avot de Rabbi Natan 34 - lists 10 words in Hebrew for "Happiness"

For our purposes, let's just look at Simcha.

בראשית ל״א:כ״ז

(כז) לָ֤מָּה נַחְבֵּ֙אתָ֙ לִבְרֹ֔חַ וַתִּגְנֹ֖ב אֹתִ֑י וְלֹא־הִגַּ֣דְתָּ לִּ֔י וָֽאֲשַׁלֵּחֲךָ֛ בְּשִׂמְחָ֥ה וּבְשִׁרִ֖ים בְּתֹ֥ף וּבְכִנּֽוֹר׃

Genesis 31:27

(27) Why did you flee in secrecy and mislead me and not tell me? I would have sent you off with festive music, with timbrel and lyre.

From Vayeitze, Laban confronts Yaakov who has snuck away with his wives and children. What is Laban's idea of happiness?

ויקרא כ״ג:מ׳

וּלְקַחְתֶּ֨ם לָכֶ֜ם בַּיּ֣וֹם הָרִאשׁ֗וֹן פְּרִ֨י עֵ֤ץ הָדָר֙ כַּפֹּ֣ת תְּמָרִ֔ים וַעֲנַ֥ף עֵץ־עָבֹ֖ת וְעַרְבֵי־נָ֑חַל וּשְׂמַחְתֶּ֗ם לִפְנֵ֛י ה' אֱלֹקֵיכֶ֖ם שִׁבְעַ֥ת יָמִֽים׃

Leviticus 23:40

And you shall take for yourselves on the first day the fruit of the tree hadar, branches of palm trees, and the boughs of thick leaved trees, and willows of the brook; and you shall rejoice before the Lord your God seven days.

דברים י״ב:ז׳

וַאֲכַלְתֶּם־שָׁ֗ם לִפְנֵי֙ יְהֹוָ֣ה אֱלֹֽהֵיכֶ֔ם וּשְׂמַחְתֶּ֗ם בְּכֹל֙ מִשְׁלַ֣ח יֶדְכֶ֔ם אַתֶּ֖ם וּבָתֵּיכֶ֑ם אֲשֶׁ֥ר בֵּֽרַכְךָ֖ יְהֹוָ֥ה אֱלֹהֶֽיךָ׃

Deuteronomy 12:7

Together with your households, you shall feast there before your God יהוה, happy in all the undertakings in which your God יהוה has blessed you.

דברים י״ב:י״ב

וּשְׂמַחְתֶּ֗ם לִפְנֵי֮ יְהֹוָ֣ה אֱלֹֽהֵיכֶם֒ אַתֶּ֗ם וּבְנֵיכֶם֙ וּבְנֹ֣תֵיכֶ֔ם וְעַבְדֵיכֶ֖ם וְאַמְהֹתֵיכֶ֑ם וְהַלֵּוִי֙ אֲשֶׁ֣ר בְּשַֽׁעֲרֵיכֶ֔ם כִּ֣י אֵ֥ין ל֛וֹ חֵ֥לֶק וְנַחֲלָ֖ה אִתְּכֶֽם׃

Deuteronomy 12:12

And you shall rejoice before your God יהוה with your sons and daughters and with your male and female slaves, along with the [family of the] Levite in your settlements, for he has no territorial allotment among you.

דברים י״ד:כ״ו

(כו) וְנָתַתָּ֣ה הַכֶּ֡סֶף בְּכֹל֩ אֲשֶׁר־תְּאַוֶּ֨ה נַפְשְׁךָ֜ בַּבָּקָ֣ר וּבַצֹּ֗אן וּבַיַּ֙יִן֙ וּבַשֵּׁכָ֔ר וּבְכֹ֛ל אֲשֶׁ֥ר תִּֽשְׁאָלְךָ֖ נַפְשֶׁ֑ךָ וְאָכַ֣לְתָּ שָּׁ֗ם לִפְנֵי֙ ה' אֱלֹקֶ֔יךָ וְשָׂמַחְתָּ֖ אַתָּ֥ה וּבֵיתֶֽךָ׃

Deuteronomy 14:26

(26) and spend the money on anything you want—cattle, sheep, wine, or other intoxicant, or anything you may desire. And you shall feast there, in the presence of your God ה', and rejoice with your household.

דברים ט״ז:ט״ו

שִׁבְעַ֣ת יָמִ֗ים תָּחֹג֙ לַיהֹוָ֣ה אֱלֹהֶ֔יךָ בַּמָּק֖וֹם אֲשֶׁר־יִבְחַ֣ר יְהֹוָ֑ה כִּ֣י יְבָרֶכְךָ֞ יְהֹוָ֣ה אֱלֹהֶ֗יךָ בְּכֹ֤ל תְּבוּאָֽתְךָ֙ וּבְכֹל֙ מַעֲשֵׂ֣ה יָדֶ֔יךָ וְהָיִ֖יתָ אַ֥ךְ שָׂמֵֽחַ׃

Deuteronomy 16:15

Seven days shalt thou keep a solemn feast to the Lord thy God in the place which the Lord shall choose: because the Lord thy God shall bless thee in all thy produce, and in all the work of thy hands, therefore thou shalt surely rejoice.

דברים כ״ח:מ״ז

(מז) תַּ֗חַת אֲשֶׁ֤ר לֹא־עָבַ֙דְתָּ֙ אֶת־ה' אֱלֹקֶ֔יךָ בְּשִׂמְחָ֖ה וּבְט֣וּב לֵבָ֑ב מֵרֹ֖ב כֹּֽל׃

Deuteronomy 28:47

(47) Because you would not serve your God ה' in joy and gladness over the abundance of everything,

דברים ל״ג:י״ח

(יח) וְלִזְבוּלֻ֣ן אָמַ֔ר שְׂמַ֥ח זְבוּלֻ֖ן בְּצֵאתֶ֑ךָ וְיִשָּׂשכָ֖ר בְּאֹהָלֶֽיךָ׃

Deuteronomy 33:18

(18) And of Zebulun he said:
Rejoice, O Zebulun, on your journeys,
And Issachar, in your tents.