How can i get keywords with good search volume & low bidding cost.

There is a new update from Neil Patel Ubersuggest 5.0, it will generate 1 million keyword suggetions in 7 seconds. It is toltally free, youmay go through it.

Also you can go through Google keywords planner. For better ideas.

Choose the proper key phrases. To better optimize your web page be careful how you select your keywords, due to the fact the opposition is stiff. ...
Choose consistent with your weblog/web site theme. Find 100-200 keywords and put them in Excel. ...
Add to your listing the abbreviation and plural paperwork. ...
Make a short and cheap campaign. ...
The selection