what would be the most lucrative investment to place funds for example 70,000 to have a good income?

All of this would depend on your time horizon and risk tolerance. This is what I would do.

I would pay down any debt I would have. This is the best return you can get. Then, I would establish an emergency fund such as a savings account or a money market account.

Then, if I had earned income, I would start a Roth IRA. It builds long term tax-free savings, qualified withdrawals begin at age 59 1/2 pending you've owned it for 5 taxable years, and you can borrow against the principal at any time.

Then, I would buy some bank CDs. I would also look into buying some treasury bonds. You might want to even buy a separate index fund or no load growth and income stock fund outside of the IRA. Anything left over, put it back into the savings or money market account. Now you're diversified and also have enough amount of risk and safety.

The ones with the most income come with the most risk.

You want decent income with moderate risk try railroads like Norfolk Southern, or utilities like Dominion or Florida Power and Light. Or try some consumer staples like Coke (K) or Proctor and Gamble PG or General Mills GIS.

None of these firms have any exposure to the toxic assets markets, or to derivatives, or to Bernie Madoff.

For slightly riskier bets, but long term nice capital gains try MSFT and HPQ.

With that much money you're going to want and spread it out over multiple securities. If you're bent on doing the 'set it and forget it' approach just buy a municipal bond fund in your state. This way you'll get great tax breaks on the interest income.

If you want to buy stocks....I suggest strong, high quality blue chip companies that pay good dividends. Check out the symbols T, PG, PFE, JNJ, VZ, PEP, KO, and DEO. There's quite a few good stocks out there that meet your needs. Hope I provided a good starting point.

It really depends on your situation, tax bracket, how much you need, etc. If it was me I would put the 70,000 into a municipal bond right now, that way you get tax free income (federal, state, and local) twice a year. It's a great deal in a crap market.