Mine is a humble suggestion: read also the comments of the various users that surely are useful. If you don't want to spend time writing a perfect code I can suggest you to use Matcha. It tool on line give you a possibility to create a fast (but it is not perfect output) to export as TikZ.
\documentclass[a4paper,12pt]{article}
\usepackage{tikz}
\begin{document}
\tikzset{every picture/.style={line width=0.75pt}} %set default line width to 0.75pt
\begin{tikzpicture}[x=0.75pt,y=0.75pt,yscale=-1,xscale=1]
\draw (214,92) -- (381.5,91.01) ;
\draw [shift={(383.5,91)}, rotate = 539.66] [color=black][line width=0.75] (10.93,-3.29) .. controls (6.95,-1.4) and (3.31,-0.3) .. (0,0) .. controls (3.31,0.3) and (6.95,1.4) .. (10.93,3.29) ;
\draw (446.5,90) -- (500.5,90) -- (500.5,158.97) ;
\draw (500.5,158.97) -- (269.5,160.98) ;
\draw [shift={(267.5,161)}, rotate = 359.5] [color=black][line width=0.75] (10.93,-3.29) .. controls (6.95,-1.4) and (3.31,-0.3) .. (0,0) .. controls (3.31,0.3) and (6.95,1.4) .. (10.93,3.29) ;
\draw (420,92) node [align=left] {tikz3};
% Text Node
\draw (295,79) node [align=left] {tikz2};
% Text Node
\draw (175,92) node [align=left] {tikz1};
% Text Node
\draw (391,147) node [align=left] {tikz4};
% Text Node
\draw (230,158) node [align=left] {tikz5};
\end{tikzpicture}
\end{document}

You can draw yourself and modify the coordinates so you can choose to position the text based on your preferences.
just-do-it-for-meclass of question. And -1 for no effort. – Raaja_is_at_topanswers.xyz Sep 13 '19 at 08:12\documentclass{}...\begin{document}etc. As it is, most of our users will be very reluctant to touch your question, and you are left to the mercy of our procrastination team who are very few in number and very picky about selecting questions. You can improve your question by adding a minimal working example (MWE) that more users can copy/paste onto their systems to work on. If no hero takes the challenge we might have to close your question. – Alessandro Cuttin Sep 13 '19 at 09:44